Long-Term Symptoms after Mild Coronavirus Disease in Healthy Healthcare Professionals: A 12-Month Prospective Cohort Study.

The coronavirus disease 2019 (COVID-19) pandemic has changed the course of human history and killed millions of people worldwide. Its long-term consequences remain uncertain. This study aimed to describe the short- and long-term symptoms of COVID-19 among individuals in Goiás, central Brazil, who experienced acute mild or non-symptomatic SARS-CoV-2 infection during the first wave of the pandemic. This prospective cohort study included 110 healthcare workers, 18 safety workers, and 19 administrative support workers, who were followed up for 12 months after the onset of COVID-19. Most participants were healthy adult female healthcare professionals. At the onset of infection, the major symptoms were headache, myalgia, nasal congestion, cough, coryza, anosmia, ageusia, sore throat, fatigue, diarrhea, and dyspnea. Furthermore, 20.3% of the participants had three or more COVID-19 symptoms that persisted for at least 12 months. These included coryza, congestion, hair loss, sore throat, headache, myalgia, cough, memory loss, anosmia, and fatigue. This study revealed a high prevalence of persistent symptoms of COVID-19 in healthy individuals from central Brazil, which may present an additional burden on healthcare services. Further studies are required to investigate the sequelae of COVID-19 over periods greater than 12 months.

RT-LAMP Multicenter Study for SARS-CoV-2 Genome Molecular Detection in Brazilian Swab and Saliva Samples.

Reverse transcription loop-mediated isothermal amplification (RT-LAMP) is a rapid method that can replace RT-qPCR. A simple molecular assay for SARS-CoV-2 RNA detection in gold-standard diagnosis through swabs and alternative specimens such as saliva could be helpful in promoting genomic surveillance. A multicenter study was conducted to evaluate the RT-LAMP assay method as an alternative for the molecular detection of SARS-CoV-2 lineages in swab and saliva samples. A total of 350 swabs from individuals with (n = 276) or without (n = 74) COVID-19 tested by RT-qPCR were collected. Paired saliva was also collected from 90 individuals who had SARS-CoV-2 RNA that was detectable (n = 30) or undetectable (n = 60) via RT-qPCR. For the RT-LAMP methodology, six primers were used for ORF1 gene amplification. As for SARS-CoV-2 genotyping, 39 swabs had the whole genome sequenced by MinION. The sensitivity of RT-LAMP to the swab was 90.2%. For the swab samples with Ct ≤ 30, the sensitivity improved by 96%. Considering saliva with Ct ≤ 30 in RT-qPCR testing, the RT-LAMP sensitivity was 100%. The RT-LAMP specificity was 100% for both the swab and saliva samples. This RT-LAMP assay was capable of detecting all the SARS-CoV-2 lineages circulating in the Brazilian swab samples. The RT-LAMP method has significant potential for use in clinical routines since it was capable of detecting SARS-CoV-2 RNA in swab and saliva samples.

Factors associated with the diagnosis of COVID-19 among Brazilian health professionals COVID-19 and health professionals.

INTRODUCTION: Health professionals are on the front lines against the Coronavirus 2019 (COVID-19) pandemic and are at high risk for acquiring the infection. Failures in precautionary measures, inadequacy/scarcity of Personal Protective Equipment (PPE), and lack of social and family distancing may be associated with increased exposure and contamination by the new coronavirus. This study investigated the prevalence of COVID-19 among Brazilian health professionals and associated factors according to demographic and occupational characteristics. METHODS: A cross-sectional, analytical study was conducted using an online survey with 12,086 health professionals from all regions of Brazil. Data were collected using an adaptation of the respondent-driven sampling method for the virtual environment. The outcome variable was the diagnosis of COVID-19. Bivariate and multiple logistic regression analyzes were used to identify an association between the diagnosis of COVID-19 and demographic and occupational variables. Variables were considered statistically significant based on p<0.05. RESULTS: Most participants were female, from the northeast region, and nursing professionals. A prevalence of 31.95% (95%CI: 31.0%, 32.9%) of COVID-19 was estimated. Following multiple regression analysis, the variables associated with the diagnosis of COVID-19 among health professionals were: male gender, married individuals, professionals who provide care to patients with COVID-19, who work in a field hospital, and those who work in institutions that did not offer enough quality PPE. CONCLUSIONS: The study found a high prevalence of COVID-19 infection, with male professionals being those with greater chances. Inadequate supply or poor quality of PPE offered by health institutions compromises the health of professionals with an increase in positive diagnosis for COVID-19.

Factors associated with the use and reuse of face masks among Brazilian individuals during the COVID-19 pandemic

Objective to identify the factors associated with the use and reuse of masks among Brazilian individuals in the context of the COVID-19 pandemic. Method cross-sectional study conducted in the five Brazilian regions, among adult individuals, via an electronic form disseminated in social media, addressing general information and the use of masks. Bivariate analysis and binary logistic regression were used to identify the factors associated with the use and reuse of masks. Results 3,981 (100%) individuals participated in the study. In total, 95.5% (CI 95%: 94.8-96.1) reported using masks. Fabric masks were more frequently reported (72.7%;CI 95%: 71.3-74.1), followed by surgical masks (27.8%;CI 95%: 26.5-29.2). The percentage of reuse was 71.1% (CI 95%: 69.7-72.5). Most (55.8%;CI 95%: 51.7-60.0) of those exclusively wearing surgical masks reported its reuse. Being a woman and having had contact with individuals presenting respiratory symptoms increased the likelihood of wearing masks (p&#8804;0.001). Additionally, being a woman decreased the likelihood of reusing surgical masks (p&#8804;0.001). Conclusion virtually all the participants reported the use of masks, most frequently fabric masks. The findings draw attention to a risky practice, that of reusing surgical and paper masks. Therefore, guidelines, public policies, and educational strategies are needed to promote the correct use of masks to control and prevent COVID-19. Objetivo identificar los factores asociados con el uso y la reutilización de máscaras entre brasileños durante la pandemia del COVID-19. Método estudio transversal desarrollado en las cinco regiones brasileñas, entre adultos, aplicándose un formulario electrónico a través de las redes sociales, que contiene información general y relativo al uso de máscaras. Se utilizaron análisis bivariados y regresiones logísticas binarias para identificar los factores asociados con el uso y la reutilización. Resultados 3.981 (100%) personas participaron en el estudio. El uso de máscaras totalizó 95.5% (IC 95%: 94.8-96.1), particularmente las de tejido (72.7%;IC 95%: 71.3-74.1) y la quirúrgicas (27.8%;IC 95%: 26.5-29.2). El porcentaje de reutilización fue del 71,1% (IC 95%: 69,7-72,5). La mayoría (55.8%;IC 95%: 51.7-60.0) que usa exclusivamente una máscara quirúrgica la reutiliza. El género femenino y el contacto previo con personas con síntomas respiratorios aumentaron las posibilidades de uso (p&#8804;0.001). Sin embargo, el sexo femenino disminuyó la posibilidad de reutilizar la máscara quirúrgica (p&#8804;0.001). Conclusión casi todos los participantes informaron haber usado máscaras, siendo aquella de tejido más frecuente. Los hallazgos llaman la atención sobre una práctica arriesgada, la reutilización de la máscara quirúrgica y de papel. Las directrices, políticas públicas y estrategias educativas son necesarias para el desarrollo de prácticas asertivas en el control y la prevención del COVID-19. Objetivo identificar os fatores associados à utilização e à reutilização de máscaras entre brasileiros durante a pandemia da COVID-19. Método estudo transversal desenvolvido nas cinco regiões brasileiras, entre adultos, via formulário eletrônico por meio de mídias sociais, contendo informações gerais e referentes à utilização de máscaras. Foram utilizadas análises bivariadas e regressões logísticas binárias para identificar fatores associados à utilização e à reutilização. Resultados participaram do estudo 3.981 (100%) pessoas. A utilização de máscaras totalizou 95,5%, (IC 95%: 94,8-96,1), com destaque para as de tecido (72,7%;IC 95%: 71,3-74,1) e as cirúrgicas (27,8%;IC 95%: 26,5-29,2). A porcentagem de reutilização foi de 71,1% (IC 95%: 69,7-72,5). A maioria (55,8%;IC 95%: 51,7-60,0) que usa, exclusivamente, máscara cirúrgica reutiliza-a. O sexo feminino e o contato prévio com pessoas com sintomas respiratórios aumentaram as chances de utilização (p&#8804;0,001). Contudo, o sexo feminino diminuiu a possibilidade de reutilização da máscara cirúrgica (p&#8804;0,001). Conclusão a quase totalidade dos participantes relatou utilizar máscaras, sendo mais recorrente a de tecido. Os achados chamam atenção para uma prática de risco, a reutilização da máscara cirúrgica e de papel. Diretrizes, políticas públicas e estratégias educativas são necessárias para o desenvolvimento de práticas assertivas no controle e prevenção da COVID-19.

Factors associated with the use and reuse of face masks among Brazilian individuals during the COVID-19 pandemic.

OBJECTIVE: to identify the factors associated with the use and reuse of masks among Brazilian individuals in the context of the COVID-19 pandemic. METHOD: cross-sectional study conducted in the five Brazilian regions, among adult individuals, via an electronic form disseminated in social media, addressing general information and the use of masks. Bivariate analysis and binary logistic regression were used to identify the factors associated with the use and reuse of masks. RESULTS: 3,981 (100%) individuals participated in the study. In total, 95.5% (CI 95%: 94.8-96.1) reported using masks. Fabric masks were more frequently reported (72.7%; CI 95%: 71.3-74.1), followed by surgical masks (27.8%; CI 95%: 26.5-29.2). The percentage of reuse was 71.1% (CI 95%: 69.7-72.5). Most (55.8%; CI 95%: 51.7-60.0) of those exclusively wearing surgical masks reported its reuse. Being a woman and having had contact with individuals presenting respiratory symptoms increased the likelihood of wearing masks (p≤0.001). Additionally, being a woman decreased the likelihood of reusing surgical masks (p≤0.001). CONCLUSION: virtually all the participants reported the use of masks, most frequently fabric masks. The findings draw attention to a risky practice, that of reusing surgical and paper masks. Therefore, guidelines, public policies, and educational strategies are needed to promote the correct use of masks to control and prevent COVID-19.