Análise da influência de determinantes meteorológicos na periodicidade de epidemias de dengue em Porto Alegre / Analysis of the influence of meteorological determinants on the periodicity of dengue epidemics in Porto Alegre

A incidência da dengue, doença viral transmitida pelo mosquito Aedes aegypti, vem crescendo em Porto Alegre ao longo dos anos, com recorde de casos registrados em 2022. Epidemias da doença parecem ocorrer de forma cíclica no município, com registros a cada três anos. Dada a influência de fatores climáticos no ciclo de vida do vetor, este trabalho buscou analisar a influência de determinantes meteorológicos na periodicidade de epidemias de dengue na capital gaúcha entre 2010 e 2022. Análises descritivas foram realizadas para averiguar o padrão dos indicadores climáticos e dos casos de dengue ao longo dos anos, ao passo que análises estatísticas foram feitas para avaliar a correlação entre os fatores climáticos e os casos autóctones registrados entre 2016 e 2022. Os resultados obtidos não apontaram padrões meteorológicos que se repetem a cada três anos e que poderiam explicar a ciclicidade observada. Ainda, não foram constatadas correlações entre temperatura, umidade e pluviosidade com casos autóctones de dengue no município, ao menos em nível quadrimestral. Para além destas análises, constatou-se expressivo aumento de casos em 2022, apesar dos esforços de controle desempenhados pelo poder público, o que aponta a necessidade de maior investimento em educação em saúde para a população. (AU)

The incidence of dengue, a viral disease transmitted by the Aedes aegypti mosquito, has been increasing in Porto Alegre over the years, with a record number of cases reported in 2022. Epidemics of the disease seem to occur cyclically in the city, with reports every three years. Given the influence of climatic factors on the vector's life cycle, this study aimed to analyze the influence of meteorological determinants on the periodicity of dengue epidemics in Porto Alegre between 2010 and 2022. Descriptive analyses were used to investigate the pattern of climatic indicators and dengue cases over the years, while statistical analyses were performed to evaluate the correlation between climatic factors and autochthonous cases registered between 2016 and 2022. The results did not point out meteorological patterns that repeat every three years and could explain the observed cyclicity. Furthermore, no correlations were found between temperature, humidity and rainfall and autochthonous dengue cases in the city, at least on a four-monthly basis. Beyond these analyses, a significant increase in dengue cases was observed in 2022, despite the efforts of the public authorities to control the disease, which highlights the need for greater investment in health education for the population. (AU)

O lampejo dos rastros nos intervalos da montagem: notas metodológicas sobre a incursão em arquivos concernentes à febre amarela e à gripe espanhola / The flash of traces in the montage intervals: methodological notes on the incursion into Yellow Fever and Spanish Flu archives / El destello de los rastros en los intervalos del montaje: apuntes metodológicos sobre la incursión en archivos concernientes a la fiebre amarilla y a la gripe española

No presente artigo, tecemos reflexões e apresentamos conceitos que têm orientado uma pesquisa nos registros de arquivos sobre a febre amarela e a gripe espanhola, nos acervos da Fundação Oswaldo Cruz, da Biblioteca Nacional e do Arquivo Nacional. A pesquisa é centrada na busca dos rastros e das ruínas desses eventos epidêmicos, mediante o método da montagem e com a perspectiva do limiar. Buscamos, por meio dessas materialidades, criar intervalos, experimentar e tecer brechas que prefiguram outros possíveis. Defendemos que, ao manejar, por meio da fabulação crítica, as formas como uma epidemia se faz aparecer, habilitamos a elaboração de uma imaginação política capaz de conferir ao futuro outras possibilidades e outros agenciamentos que não sejam a catástrofe e a melancolia

In this article we reflect on the presented concepts that have guided research in the archival records of Yellow Fever and Spanish Flu in the collections of the Fundação Oswaldo Cruz (Oswaldo Cruz Foundation), the Biblioteca Nacional (National Library), and the Arquivo Nacional (National Archive). The research is centered on the search for the traces and ruins of those epidemic events, through the method of montage and from the perspective of the threshold. We seek, by means of these materialities, to create intervals, to experiment, and to weave gaps that prefigure other possibilities. We argue that, by coping with, through critical fabulation, the ways in which an epidemic makes itself appear, we enable the elaboration of a political imagination capable of giving the future other possibilities and arrangements that are not the catastrophe and the melancholy

En el presente artículo hacemos reflexiones y presentamos conceptos que han guiado una investigación sobre los registros archivísticos de la fiebre amarilla y la gripe española en los acervos de la Fundação Oswaldo Cruz (Fundación Oswaldo Cruz), de la Biblioteca Nacional (Biblioteca Nacional y del Arquivo Nacional (Archivo Nacional). La investigación se centra en la búsqueda de los rastros y las ruinas de esos eventos epidémicos, mediante el método del montaje y la perspectiva del umbral. Buscamos, por medio de estas materialidades, crear intervalos, experimentar y tejer brechas que prefiguren otras posibilidades. Argumentamos que manejando, a través de la fabulación crítica, las formas en que se hace aparecer una epidemia, posibilitamos la elaboración de una imaginación política que dé al futuro otras posibilidades y disposiciones que no sean la catástrofe y la melancolía

Las epidemias de cólera en Argentina. Breve reseña histórica / The cholera epidemics in Argentina. Brief historical review

El cólera es una toxoinfección alimentaria ocasionada por la ingesta de agua y alimentos contaminados por el Vibrio cholerae. Es una de las enfermedades más antiguas de la humanidad y las primeras descripciones corresponden a Hipócrates. La primera epidemia documentada, sucedió en la India en 1817 y se extendió a Turquía y a los países árabes. En nuestro país, el primer brote ocurrió en 1856 en la ciudad de Bahía Blanca, asociada a la llegada de navíos con enfermos y a las deficientes condiciones sanitarias de la ciudad. Los sucesivos brotes se acompañaron de una alta mortalidad, a tal punto que el Dr. José María Penna señaló que costó más vidas a la nación que la guerra con Paraguay. En el presente artículo se analizan los sucesivos brotes de cólera en nuestro país

Cholera is a food poisoning caused by the ingestion of food and water contaminated by Vibrio cholerae. It is one of the oldest diseases of humanity and the first descriptions correspond to Hippocrates. The first documented epidemic occurred in India in 1817 and spread to Turkey and the Arab countries. In our country, the first outbreak occurred in 1856 in the city of Bahía Blanca, associated with the arrival of ships with patients and poor sanitary conditions in the city. The successive outbreaks were accompanied by high mortality, to the point that Dr. José María Penna pointed out that it cost the nation more lives than the war with Paraguay. This article analyzes the successive outbreaks of cholera in our country

Guerras de trincheira e guerras permanentes na resposta à aids / Trench warfare and permanent warfare in the AIDS response / Guerra de trincheras y guerra permanente en la respuesta al SIDA

A resenha analisa o filme Os primeiros soldados, de Rodrigo de Oliveira (Brasil, 2021). A película apresenta a vida de três personagens, ao longo do ano de 1983, no Brasil, às voltas com a descoberta da aids em suas vidas. Mostram-se suas redes de relações, seus planos, e particularmente as estratégias de compreensão e enfrentamento da doença. Na tradição de produções cinematográficas que enfocam os modos pelos quais a população LGBTQIAP+ enfrentou a aids, o filme recorta três pessoas comuns, que não lideram movimentos sociais, mas fazem esforços para compreender o que é a doença e como podem com ela aprender. Ao narrar esse enfrentamento, o filme valoriza os afetos construídos, as estratégias de cuidado, as tentativas de obter conhecimento pela observação da trajetória da doença, e as novas percepções que os personagens têm em torno da precariedade da vida e de sua vulnerabilidade na sociedade

This review analyzes the film Os primeiros soldados, by Rodrigo de Oliveira (Brazil, 2021). The film presents the lives of three characters throughout 1983, in Brazil, dealing with the discovery of AIDS in their lives. Their networks of relationships, their plans, and particularly the strategies for understanding and coping skills with the disease are shown. In the tradition of cinematographic productions that focus on the ways in which the LGBTQIAP+ population faced AIDS, the film features three common people, who do not lead social movements, but make efforts to understand what the disease is and how they can learn from it. When narrating this confrontation, the film values the constructed affections, the care strategies, the attempts to gain knowledge by observing the trajectory of the disease, and the new perceptions that the characters have around the precariousness of life and their vulnerability in society.

La reseña analiza la película Os primeiros soldados, de Rodrigo de Oliveira (Brasil, 2021). La película pre-senta la vida de tres personajes a lo largo de 1983, en Brasil, lidiando con el descubrimiento del SIDA en sus vidas. Se muestran sus redes de relaciones, sus planes y, en particular, las estrategias de comprensión y afrontamiento de la enfermedad. En la tradición de las producciones cinematográficas que se enfocan en las formas en que la población LGBTQIAP+ enfrentó el SIDA, la película presenta a tres personas comunes, que no lideran movimientos sociales, pero se esfuerzan por comprender qué es la enfermedad y cómo pueden aprender de ella. Al narrar este enfrentamiento, la película valora los afectos construidos, las estrategias de cuidado, los intentos de conocimiento a través de la observación de la trayectoria de la enfermedad y las nuevas percepciones que tienen los personajes en torno a la precariedad de la vida y su vulnerabilidad en la sociedad

Variante mexicana de COVID-19: ómicron BW. 1 o Xibalbá / Mexican variant of COVID-19: omicron BW. 1 o Xibalbá

Introducción: desde la aparición del COVID-19 a principios de diciembre del año 2019, en la ciudad China de Wuhan, esta enfermedad respiratoria empezó a avanzar a nivel mundial. El 30 de enero de 2020, la Organización Mundial de la Salud declaró a esta enfermedad con carácter epidémico y como una situación de emergencia a nivel mundial. El propósito de este estudio es presentar información de la variante ómicron BW.1 o Xibalbá. Conclusión: México está en un proceso de transición de pandemia hacia endemia, pero no quiere decir que no seguirán apareciendo nuevas variantes como ocurrió en la quinta ola (ómicron BA.5) o con subvariantes que emergieron como BW.1 «Xibalbá¼, BQ.1 «perro del infierno¼ y XBB «pesadilla¼. La población y los gobiernos deberán continuar con las medidas preventivas establecidas desde el inicio de la pandemia como son el uso de cubrebocas, el correcto lavado de manos y de ropa, los hábitos de higiene, limpieza, desinfección personal y de nuestro entorno, el aislamiento precoz ante alguna sintomatología y la vacunación (ya sea la primera o sus refuerzos subsecuentes).(AU)

Introduction: since the appearance of COVID-19 in early December 2019 in the Chinese city of Wuhan, this respiratory disease began to spread worldwide. On the thirtieth of January of the year two thousand and twenty, the World Health Organization (WHO) declared this disease to be epidemic and with a worldwide emergency situation. The purpose of the study is to present information on the Omicron BW.1 or Xibalba variant. Conclusion: Mexico is in a process of transition from pandemic to endemic but this does not mean that new variants will not continue to appear as they did in the fifth wave (omicron BA.5) or subvariants that emerged such as: BW.1 or «Xibalbá¼, BQ.1 «hellhound¼ and XBB «nightmare¼. The population and governments should continue with the preventive measures established since the beginning of the pandemic, such as: use of masks, proper hand and clothing washing, hygiene habits, personal and environmental cleaning and disinfection, early isolation in case of any symptomatology, and vaccination, either first or subsequent boosters.(AU)

Perfil das notificações de dengue e febre chikungunya em Cabo Frio/Rj, 2014-2019 / Profile of dengue and chikungunya notifications in Cabo Frio/Rj, 2014-2019 / Perfil de las notificaciones de dengue y chikungunya en Cabo Frio/Rj, 2014-2019

Introdução: De acordo com a literatura científica, diagnósticos clínicos diferenciais de arboviroses representam uma dificuldade no que tange à dengue, na medida em que está no Brasil há muitos anos, o que acarreta em ser a arbovirose mais conhecida no país. As notificações de arboviroses se tornaram obrigatórias para inserção no SINAN, possibilitando a construção de perfis demográficos e o cálculo de incidências a partir de informações específicas para estas doenças. No que tange à dengue, a epidemia deste agravo ocorre no país desde 1986, evidenciando falhas na prevenção, relacionadas a aspectos socioeconômicos e ambientais. Objetivo: analisar perfis das notificações de dengue e febre de chikungunya dos casos notificados no município de Cabo Frio. Metodologia: Trata-se de estudo transversal e descritivo, com uso de dados secundários do SINAN referentes a casos de arboviroses no município de Cabo Frio/RJ. Foram observadas variáveis relacionadas ao sexo, escolaridade, raça/cor e critérios de confirmação, além do grau de completude. Resultados: Foram notificados 8.777 casos suspeitos de arboviroses, incluindo-se 1.367 notificações (15,57%) referentes à febre de chikungunya e 1.986 (22,63%), à dengue. Em relação ao desfecho, 1186 casos (51,45%) foram fechados como inconclusivos e 344 destes (14,92%) foram descartados como arboviroses. Dentre os inconclusivos, 943 (79,51%) eram referentes à notificação de dengue, idem para os 277 casos descartados (80,52%). Conclusão: Observou-se baixa taxa de completude nas fichas de notificação, explicada pelo baixo número de recursos humanos e pela insuficiente infraestrutura. Sugere-se a interação de diferentes profissionais e pesquisadores, facilitando a compreensão da complexa dinâmica das arboviroses em questão.

Introduction: According to the scientific literature, differential clinical diagnoses of arboviruses represent a difficulty with regard to dengue, as it has been present in Brazil for many years, which makes it the most well-known arbovirus in the country. Notifications of arboviruses became mandatory for inclusion in SINAN, enabling the construction of demographic profiles and the calculation of incidences based on specific information for these diseases. With regard to dengue, the epidemic of this disease has occurred in the country since 1986, showing failures in prevention, related to socioeconomic and environmental aspects. Objective: to analyze profiles of notifications of dengue and chikungunya fever of cases notified in the municipality of Cabo Frio. Methodology: This is a cross-sectional and descriptive study, using secondary data from SINAN regarding cases of arboviruses in the municipality of Cabo Frio/RJ. Variables related to sex, education, race/color and confirmation criteria were observed, in addition to the degree of completeness. Results: 8,777 suspected cases of arboviruses were reported, including 1,367 reports (15.57%) referring to chikungunya fever and 1,986 (22.63%) to dengue fever. Regarding the outcome, 1186 cases (51.45%) were closed as inconclusive and 344 of these (14.92%) were discarded as arboviruses. Among the inconclusive ones, 943 (79.51%) were related to dengue notification, the same for the 277 discarded cases (80.52%). Conclusion: A low completeness rate was observed in the notification forms, explained by the low number of human resources and insufficient infrastructure. It is suggested the interaction of different professionals and researchers, facilitating the understanding of the complex dynamics of the arboviruses in question.

Introducción: Según la literatura científica, los diagnósticos clínicos diferenciales de los arbovirus representan una dificultad con respecto al dengue, ya que está presente en Brasil desde hace muchos años, lo que lo convierte en el arbovirus más conocido en el país. Las notificaciones de arbovirus pasaron a ser obligatorias para su inclusión en el SINAN, lo que permitió la construcción de perfiles demográficos y el cálculo de incidencias a partir de información específica de estas enfermedades. Con respecto al dengue, la epidemia de esta enfermedad se presenta en el país desde 1986, mostrando fallas en la prevención, relacionadas con aspectos socioeconómicos y ambientales. Objetivo: analizar perfiles de notificaciones de dengue y fiebre chikungunya de los casos notificados en el municipio de Cabo Frio. Metodología: Se trata de un estudio transversal y descriptivo, utilizando datos secundarios del SINAN sobre casos de arbovirus en el municipio de Cabo Frio/RJ. Se observaron variables relacionadas con el sexo, escolaridad, raza/color y criterios de confirmación, además del grado de completitud. Resultados: se notificaron 8.777 casos sospechosos de arbovirus, de los cuales 1.367 (15,57%) se referían a fiebre chikungunya y 1.986 (22,63%) a dengue. En cuanto al resultado, 1186 casos (51,45%) se cerraron como no concluyentes y 344 de estos (14,92%) se descartaron como arbovirus. Entre los inconclusos, 943 (79,51%) estaban relacionados con la notificación de dengue, lo mismo para los 277 casos descartados (80,52%). Conclusión: Se observó un bajo índice de completitud en los formularios de notificación, explicado por el bajo número de recursos humanos y la infraestructura insuficiente. Se sugiere la interacción de diferentes profesionales e investigadores, facilitando la comprensión de la compleja dinámica de los arbovirus en cuestión.

Analysis of the impact of health management measures for entry personnel on imported Dengue fever in Guangdong Province, 2020-2022 / 中华流行病学杂志

Objective: To explore the impact of health management measures for entry personnel (entry management measures) against COVID-19 on the epidemiological characteristics of imported Dengue fever in Guangdong Province from 2020 to 2022. Methods: Data of imported Dengue fever from January 1, 2016 to August 31, 2022, mosquito density surveillance from 2016 to 2021, and international airline passengers and Dengue fever annual reported cases from 2011 to 2021 in Guangdong were collected. Comparative analysis was conducted to explore changes in the epidemic characteristics of imported Dengue fever before the implementation of entry management measures (from January 1, 2016 to March 20, 2020) and after the implementation (from March 21, 2020 to August 31, 2022). Results: From March 21, 2020, to August 31, 2022, a total of 52 cases of imported Dengue fever cases were reported, with an imported risk intensity of 0.12, which were lower than those before implementation of entry management measures (1 828, 5.29). No significant differences were found in the characteristics of imported cases before and after implementation of entry management measures, including seasonality, sex, age, career, and imported countries (all P>0.05). 59.62% (31/52) of cases were found at the centralized isolation sites and 38.46% (20/52) at the entry ports. However, before implementation of entry management measures, 95.08% (1 738/1 828) of cases were found in hospitals. Among 51 cases who had provided entry dates, 82.35% (42/51) and 98.04% (50/51) of cases were found within seven days and fourteen days after entry, slightly higher than before implementation [(72.69%(362/498) and 97.59% (486/498)]. There was significant difference between the monthly mean values of Aedes mosquito larval density (Bretto index) from 2020 to 2021 and those from 2016 to 2019 (Z=2.83, P=0.005). There is a strong positive correlation between the annual international airline passengers volume in Guangdong from 2011 to 2021 and the annual imported Dengue fever cases (r=0.94, P<0.001), and a positive correlation also existed between the international passenger volume and the annual indigenous Dengue fever cases (r=0.72, P=0.013). Conclusions: In Guangdong, the entry management measures of centralized isolation for fourteen days after entry from abroad had been implemented, and most imported Dengue fever cases were found within fourteen days after entry. The risk of local transmission caused by imported cases has reduced significantly.

Epidemiologic characteristics and influencing factors of influenza outbreaks in Guangdong Province, 2015-2022 / 中华流行病学杂志

Objective: To grasp the epidemiological characteristics of influenza outbreaks in Guangdong Province by analyzing the outbreaks of influenza-like cases reported in Guangdong Province from January 2015 to the end of August 2022. Methods: In response to the outbreak of epidemics in Guangdong Province from 2015 to 2022, information on on-site epidemic control was collected, and epidemiological analysis was conducted to describe the characteristics of the epidemics. The factors that influence the intensity and duration of the outbreak were determined through a logistic regression model. Results: A total of 1 901 influenza outbreaks were reported in Guangdong Province, with an overall incidence of 2.05%. Most outbreak reports occurred from November to January of the following year (50.24%, 955/1 901) and from April to June (29.88%, 568/1 901). A total of 59.23% (1 126/1 901) of the outbreaks were reported in the Pearl River Delta region, and primary and secondary schools were the main places where outbreaks occurred (88.01%, 1 673/1 901). Outbreaks with 10-29 cases were the most common (66.18%, 1 258/1 901), and most outbreaks lasted less than seven days (50.93%,906/1 779). The size of the outbreak was related to the nursery school (aOR=0.38, 95%CI:0.15-0.93), the Pearl River Delta region (aOR=0.60, 95%CI:0.44-0.83), the time interval between the onset of the first case and the time of report (>7 days compared with ≤3 days: aOR=3.01, 95%CI:1.84-4.90), the influenza A(H1N1) (aOR=2.02, 95%CI:1.15-3.55) and the influenza B (Yamagata) (aOR=2.94, 95%CI: 1.50-5.76). The duration of outbreaks was related to school closures (aOR=0.65, 95%CI: 0.47-0.89), the Pearl River Delta region (aOR=0.65, 95%CI: 0.50-0.83) and the time interval between the onset of the first case and the time of report (>7 days compared with ≤3 days: aOR=13.33, 95%CI: 8.80-20.19; 4-7 days compared with ≤3 days: aOR=2.56, 95%CI: 1.81-3.61). Conclusions: An influenza outbreak in Guangdong Province exhibits two peaks, one in the winter and spring seasons and the other in the summer. Primary and secondary schools are high-risk areas, and early reporting of outbreaks is critical for controlling influenza outbreaks in schools. Furthermore, comprehensive measures should be taken to prevent the spread of the epidemic.

Progress in research on HIV cluster detection and response / 中华流行病学杂志

HIV cluster detection and response (CDR) is a critical strategy to end the HIV epidemic by offering information to identify prevention and care services gaps. The risk metrics for HIV clusters can be classified into three groups: growth-based metrics, characteristic-based metrics, and phylogeny-based metrics. When identifying HIV risk clusters, the public health response can reach people in the affected networks, including people with undiagnosed HIV, people with diagnosed HIV who might not be accessing HIV care or other services, and people without HIV who would benefit from prevention services. To provide references for HIV precise prevention in China, we summarized the risk metrics and the intervention measures for CDR.

Comparison of epidemic characteristics and clinical manifestation of chickenpox between adults and children in Shandong Province from 2019 to 2021 / 中华流行病学杂志

Objective: To analyze the differences between adults and children in the epidemic characteristics and clinical manifestations of chickenpox and provide a reference for the prevention strategy adjustment of chickenpox. Methods: The incidence data of chickenpox surveillance in Shandong Province from January 2019 to December 2021 were collected. Descriptive epidemiological methods were used to analyze the distribution of cases, and the chi-square test was used to compare the differences in epidemiological characteristics and clinical manifestations of varicella cases between adults and children. Results: A total of 66 182 cases of chickenpox were reported from 2019 to 2021, including 24 085 cases of adults chickenpox, the male to female sex ratio was 1∶1 (12 032∶12 053), basically the same for men and women, and 42 097 cases of children chickenpox, with a gender ratio of 1.4∶1, the male to female ratio was 1.4∶1 (24 699∶17 398). Fever in chickenpox cases was mainly low and moderate, but the proportion of moderate fever with temperature between 38.1 and 39.0 ℃ in children cases (35.0%,14 744/42 097) was significantly higher than that in adults (32.0%,7 696/24 085). The number of herpes in chickenpox cases was mainly less than 50, but the proportion of severe cases with 100-200 herpes in children was higher than that in adults. The incidence rate of complications was 1.4% (333/24 085) in adults chickenpox, the incidence rate of complications was 1.7% (731/42 097) in children chickenpox. The incidence of encephalitis and pneumonia in children was higher than in adults, and the difference was statistically significant (P<0.05). The proportion of chickenpox cases was mainly outpatient, but the hospitalization rate of children cases was 14.4% (6 049/42 097), higher than that of adults, which was 10.7% (2 585/24 085). Conclusions: There were differences between adult chickenpox and child chickenpox in terms of epidemic and clinical manifestations; the symptoms of child chickenpox were more serious than adult chickenpox. However, the adult chickenpox population is generally susceptible and lacks immune strategy protection, which calls for more attention.

Estimation of COVID-19 incidence in Shanghai under optimized epidemic prevention and control strategies / 中华流行病学杂志

Objective: To quantitatively estimate the incidence of COVID-19 in different backgrounds, including vaccination coverage, non-pharmacological interventions (NPIs) measures, home quarantine willingness and international arrivals, and the demands of healthcare resource in Shanghai in the context of optimized epidemic prevention and control strategies. Methods: Based on the natural history of 2019-nCoV, local vaccination coverage and NPI performance, an age-structured Susceptible-Exposed-Infections-Removed (SEIR) epidemic dynamic model was established for the estimation of the incidence of COVID-19 and demand of hospital beds in Shanghai by using the data on December 1, 2022 as the basis. Results: Based on current vaccination coverage, it is estimated that 180 184 COVID-19 cases would need treatment in hospitals in Shanghai within 100 days. When the booster vaccination coverage reaches an ideal level, the number of the cases needing hospitalization would decrease by 73.20%. School closure or school closure plus workplace closure could reduce the peak demand of regular beds by 24.04% or 37.73%, respectively, compared with the situation without NPI. Increased willingness of home quarantine could reduce the number of daily new cases and delay incidence peak of COVID-19. The number of international arrivals has little impact on the development of the epidemic. Conclusions: According to the epidemiological characteristics of COVID-19 and the actual situation of vaccination in Shanghai, the incidence of COVID-19 and health resource demand might be reduced by increasing vaccination coverage and early implementation of NPI.

Research progress on the relationship between COVID-19 and autoimmune diseases / 中华预防医学杂志

Different autoantibodies can be detected in patients with coronavirus disease 2019 (COVID-19). It is reported that severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection could induce autoimmune diseases (AID), including children's multisystem inflammatory syndrome (MIS-C), Guillain Barre syndrome (GBS), Autoimmune hemolytic anemia (AIHA), immune thrombocytopenia (ITP) and thyroid autoimmune diseases. This article mainly reviews the similarities between COVID-19 and AID, the possibility of COVID-19 inducing AID, the risk of AID patients infected or vaccinated against COVID-19. The purpose is to provide strategies for the prevention, management and treatment of AID during the epidemic.

Research progress of human bocavirus infection in children / 中华危重病急救医学

Human bocavirus is a novel pathogen first detected in respiratory tract samples in 2005. People of different ages can be infected by human bocavirus. Children are the susceptible population, especially the infants aged from 6-24 months old. The epidemic season varies in different regions due to the differences in climate and geographical location, and it mainly occurs in autumn and winter. It's demonstrated that human bocavirus-1 is closely related to respiratory system diseases and even causes life-threatening critical illness. Also, the severity of symptom is positively correlated with viral load. Co-infections between human bocavirus-1 and other viruses often present high frequency occurrence. Human bocavirus-1 interferes immune function of host by inhibiting interferon secrete pathway. Currently, it remains limited knowledge and understanding of the roles of human bocavirus 2-4 in diseases, but the gastrointestinal diseases should be paid more attention. Detection of human bocavirus DNA by traditional polymerase chain reaction (PCR) assay shouldn't be regarded as conclusive diagnostic basis. Instead, combined with mRNA and specific antigen detection, it is beneficial to improve the accuracy of diagnosis. Till now, the knowledge of human bocavirus remains poorly studied, which is deserved to further progress.

Emergency Management of Medical Equipment in Designated Hospitals for Public Health Emergencies / 中国医疗器械杂志

Medical supply is a key resource for responding to public health emergencies and maintaining people's lives and health. As the medical equipment management department, the medical devices department is mainly responsible for the procurement, supply, technical support, management and coordination of medical equipment and medical consumables, playing an important role in epidemic prevention and control. Through the analysis of the expansion cases of designated hospitals, the experience of emergency management of medical equipment has been accumulated, which has strong practicability and replicability.

Clinical features of children with coronavirus disease 2019 in different age groups during the epidemic of Omicron variant / 中国当代儿科杂志

OBJECTIVES@#To study the differences in the clinical features of children with coronavirus disease 2019 (COVID-19) in different age groups during the epidemic of Omicron variant.@*METHODS@#A retrospective analysis was performed on the clinical data of 211 children with COVID-19 who were admitted to the Department of General Pediatrics, Zhongshan People's Hospital, from December 9, 2022 to January 8, 2023. According to their age, they were divided into 4 groups: 1 month-<1 year (n=84), 1-<3 years group (n=64), 3-<5 years (n=29), and ≥5 years (n=34). The above groups were compared in terms of general status, clinical features, ancillary examination results, treatment, and outcome.@*RESULTS@#The children aged <3 years accounted for 70.1% (148/211) of all hospitalized children with COVID-19, and the 3-<5 years group and the ≥5 years group had a significantly higher proportion of children with underlying diseases than the 1 month-<1 year group and the 1-<3 years group (P<0.05). Compared with the other three groups, the 1 month-<1 year group had significantly higher incidence rates of dyspnea, nasal congestion/nasal discharge, diarrhea and significantly lower incidence rates of convulsion and nervous system involvement (P<0.05). Moreover, compared with the other three groups, the 1 month-<1 year group had significantly higher incidence rates of increases in bile acid and creatine kinase isoenzyme and significantly lower incidence rates of decreased platelet count, increased neutrophil percentage, and decreased lymphocyte percentage (P<0.05). The 1 month-<1 year group had a significantly higher incidence rate of mild COVID-19 than the 1-<3 years group and a significantly lower incidence rate of severe/critical COVID-19 than the other three groups (P<0.05). Compared with the other three groups, the 1 month-<1 year group had a significantly higher proportion of children receiving oxygen inhalation therapy (P<0.05).@*CONCLUSIONS@#Children with COVID-19 in different age groups have different clinical features during the epidemic of Omicron variant, especially between the children aged 1 month to <1 year and those aged ≥1 year.

Clinical features of children with febrile seizures caused by Omicron variant infection / 中国当代儿科杂志

OBJECTIVES@#To study the clinical features of children with febrile seizures after Omicron variant infection.@*METHODS@#A retrospective analysis was performed on the clinical data of children with febrile seizures after Omicron variant infection who were admitted to the Department of Neurology, Children's Hospital Affiliated to the Capital Institute of Pediatrics, from December 1 to 31, 2022 (during the epidemic of Omicron variant; Omicron group), and the children with febrile seizures (without Omicron variant infection) who were admitted from December 1 to 31, in 2021 were included as the non-Omicron group. Clinical features were compared between the two groups.@*RESULTS@#There were 381 children in the Omicron group (250 boys and 131 girls), with a mean age of (3.2±2.4) years. There were 112 children in the non-Omicron group (72 boys and 40 girls), with a mean age of (3.5±1.8) years. The number of children in the Omicron group was 3.4 times that in the non-Omicron group. The proportion of children in two age groups, aged 1 to <2 years and 6-10.83 years, in the Omicron group was higher than that in the non-Omicron group, while the proportion of children in two age groups, aged 4 to <5 years and 5 to <6 years, was lower in the Omicron group than that in the non-Omicron group (P<0.05).The Omicron group had a significantly higher proportion of children with cluster seizures and status convulsion than the non-Omicron group (P<0.05). Among the children with recurrence of febrile seizures, the proportion of children aged 6-10.83 years in the Omicron group was higher than that in the non-Omicron group, while the proportion of children aged 3 years, 4 years, and 5 years in the Omicron group was lower than that in the non-Omicron group (P<0.05).@*CONCLUSIONS@#Children with febrile seizures after Omicron variant infection tend to have a wider age range, with an increase in the proportion of children with cluster seizures and status convulsion during the course of fever.

Paying attention to the epidemic of group A Streptococcus infections in multiple European and American countries / 中国当代儿科杂志

At the end of 2022, the World Health Organization reported an increase in group A Streptococcus (GAS) infections, such as scarlet fever, in multiple countries. The outbreak primarily affected children under 10 years old, and the number of deaths was higher than anticipated, causing international concern. This paper reviews the current state of the GAS disease outbreak, its causes, and response measures. The authors aim to draw attention from clinical workers in China and increase their awareness and vigilance regarding this epidemic. Healthcare workers should be aware of the potential epidemiological changes in infectious diseases that may arise after the optimization of control measures for coronavirus disease 2019 to ensure children's health.

Global Epidemic of Ebola Virus Disease and the Importation Risk into China: An Assessment Based on the Risk Matrix Method / 生物医学与环境科学（英文）

OBJECTIVE@#To analyze the global epidemic status of the Ebola virus disease (EVD) and assess the importation risk into China.@*METHODS@#Data from World Health Organization reports were used. We described the global epidemic status of EVD from 1976-2021, and assessed and ranked the importation risk of EVD from the disease-outbreaking countries into China using the risk matrix and Borda count methods, respectively.@*RESULTS@#From 1976-2021, EVD mainly occurred in western and central Africa, with the highest cumulative number of cases (14,124 cases) in Sierra Leone, and the highest cumulative fatality rate (85%) in the Congo. Outbreaks of EVD have occurred in the Democratic Republic of the Congo and Guinea since 2018. The importation risk into China varies across countries with outbreaks of disease. The Democratic Republic of the Congo had an extremely high risk (23 Borda points), followed by Guinea and Liberia. Countries with a moderate importation risk were Nigeria, Uganda, Congo, Sierra Leone, Mali, and Gabon, while countries with a low importation risk included Sudan, Senegal, and Co

Assessment of intensity of seasonal influenza activity in Beijing-Tianjin-Hebei region, 2019-2021 / 中华流行病学杂志

Objective: To explore the feasibility of moving epidemic method (MEM) in the assessment of seasonal influenza (influenza) activity intensity from the perspective of urban agglomeration, assess influenza activity intensity in the Beijing-Tianjin-Hebei region from 2019 to 2021 and evaluate the reliability of surveillance data and the effectiveness of the MEM model application. Methods: The weekly reported incidence rate (IR) of influenza and the percentage of influenza-like illness (ILI%) from 2011-2021 in Beijing-Tianjin-Hebei region were collected to establish MEM models respectively. The model fitting effect and the reliability of the two data were evaluated for the purpose of establishing an optimal model to assess the influenza activity intensity in Beijing-Tianjin-Hebei region from 2019-2021. A cross-validation procedure was used to evaluate the performance of the models by calculating the Youden's index, sensitivity and specificity. Results: The MEM model fitted with weekly ILI% had a higher Youden's index compared with the model fitted with weekly IR at both Beijing-Tianjin-Hebei region level and provincial level. The MEM model based on ILI% showed that the epidemic threshold in Beijing-Tianjin-Hebei region during 2019-2020 was 4.42%, the post-epidemic threshold was 4.66%, with medium, high and very high intensity thresholds as 5.38%, 7.22% and 7.84%, respectively. The influenza season during 2019-2020 had 10 weeks (week 50 of 2019 to week 7 of 2020). The influenza season started in week 50 of 2019, and the intensity fluctuated above and below medium epidemic level for six consecutive weeks. The high intensity was observed in week 4 of 2020, the threshold of very high intensity was excessed in week 5, and the intensity gradually declined and became lower than the threshold at the end of the influenza season in week 8. The epidemic threshold was 4.29% and the post-epidemic threshold was 4.35% during 2020-2021. Influenza activity level never excessed the epidemic threshold throughout the year, and no epidemic period emerged. Conclusions: The MEM model could be applied in the assessment of influenza activity intensity in Beijing-Tianjin-Hebei region, and the use of ILI% to assess influenza activity intensity in this region was more reliable than IR data. Influenza activity intensity in Beijing-Tianjin-Hebei region was higher during 2019-2020 but significantly lower in 2020-2021.