Characteristics of severe malaria in hospitalized children in Ho Chi Minh City from 2012 to 2019

@#In Vietnam, severe malaria is currently rare but is a life-threatening disease. It may be misdiagnosed with other common diseases. This descriptive study aimed to characterize severe malaria and its clinical aspects, as well as outcomes of infected pediatric patients to improve case management. The case-series study was carried out based on medical records of children aged between one month and 15 years with malaria diagnosed by blood smear or rapid diagnostic test. Chi-squared test with the p values less than 0.05 were considered statistically significant. There were 47 cases enrolled in the study. The prevalence of severe malaria was 29.8% (57.1% in children under five). The morbidity was 71.4% in male and 28.6% in female. Common clinical signs of severe malaria were fever (100%), severe anemia (21.4%), hepatomegaly (85.7%), and splenomegaly (71.4%). Common biological abnormalities in severe malaria were anemia, thrombocytopenia, increased liver enzymes, and high CRP level. The severe malaria was mainly caused by P. falciparum (100%). The age range for those infected with P. falciparum was 6.5 ± 4.5 years (min 0.3; max 14.9). The successful rate of treatment was 92.9% with artesunate. Antimalarial treatment time was 9.0 (6 – 12) days for severe malaria, which was twice as many as that for non-severe malaria (p = 0.067). The current clinical and biological findings of severe malaria are different from those in previous times, which make it easy to be overlooked. Therefore, it’s important to perform malaria diagnostic tests when there’re clinical suggestions of severe malaria, including fever, hepatomegaly or splenomegaly.

Malaria and tuberculosis as diseases of neglected populations: state of the art in chemotherapy and advances in the search for new drugs

Malaria and tuberculosis are no longer considered to be neglected diseases by the World Health Organization. However, both are huge challenges and public health problems in the world, which affect poor people, today referred to as neglected populations. In addition, malaria and tuberculosis present the same difficulties regarding the treatment, such as toxicity and the microbial resistance. The increase of Plasmodium resistance to the available drugs along with the insurgence of multidrug- and particularly tuberculosis drug-resistant strains are enough to justify efforts towards the development of novel medicines for both diseases. This literature review provides an overview of the state of the art of antimalarial and antituberculosis chemotherapies, emphasising novel drugs introduced in the pharmaceutical market and the advances in research of new candidates for these diseases, and including some aspects of their mechanism/sites of action.

Gastrointestinal Helminths of Local and Exotic Domestic Fowls in Ijebu-Ode, Ogun State, Nigeria

Chicken remains the most intensively reared domesticated poultry species in the animal production industry in Africa. A cross-sectional study was conducted from April to November 2016 in Ijebu-Ode, Ogun State, Nigeria to evaluate the prevalence of gastrointestinal and malaria parasites of local and exotic domestic fowls. A total of 620 domestic fowls were examined for gastrointestinal parasites in Ijebu-Ode, Ogun State, Nigeria, using the flotation technique. Another 16 (10 exotic and six local) domestic fowls were examined for Plasmodium infection and Packed Cell Volume (PCV). Five species of parasites were identified from the domestic fowls which included Ascaridia galli (54.2%), Heterakis gallinarum (15.5%), Capillaria sp. (8.2%), Raillietina sp. (20.8%) and Syngamus trachea (1.4%). Ascaridia galli had the highest prevalence in both the local (male = 50%, female = 48.5%) and exotic domestic fowls (male = 62.5%, female = 55.7%), followed by Raillietina sp., Heterakis gallinarum, Capillaria sp. and Syngamus trachea respectively. Plasmodium sp. was detected in two (33.3%) out of six local domestic fowls and two (20%) out of 10 exotic domestic fowls. The relationship between the PCV and malaria parasite prevalence level in both local and exotic domestic fowls were negative and not statistically significant (p>0.05). However, the relationship between the PCV and malaria parasite prevalence was stronger in the local domestic fowls (R = 0.207) than in the exotic domestic fowls (R = 0.172). It is necessary that public awareness scheme, and prevention and control measures with better management system be introduced in the study area.

Parasitismo em aves silvestres residentes e migratórias da Ilha da Marambaia, Estado do Rio de Janeiro / Parasitism in migratory and resident wild birds of Marambaia island, Rio de Janeiro state

O objetivo desta pesquisa foi buscar a presença de microrganismos em esfregaços sanguíneos de aves silvestres residentes ou migratórias da Ilha da Marambaia, município de Mangaratiba, estado do Rio de Janeiro, durante o ano de 2009. Para execução da pesquisa, 86 indivíduos referentes a 22 espécies foram capturados através de rede de neblina e após manuseio liberados ao seu habitat natural. Foi coletado sangue periférico das aves e realizado esfregaços sanguíneos. Como resultados foi diagnosticado a ocorrência de 11 (12,80%) indivíduos positivos para Plasmodium sp., um (1,16%) para microfilária e 16 (18,60%) para Borrelia sp. Foram encontrados carrapatos Amblyomma sp. (Família Ixodidae) parasitando as aves amostradas, o que sugere existir uma interação parasito-vetor-hospedeiro entre esse e o gênero Borrelia. Este estudo deve ser ampliado para outras regiões e o seu conhecimento dará maiores subsídios para outras pesquisas, voltadas principalmente para a preservação de aves em ambiente por elas escolhidos como seu habitat.(AU)

The study intended to analyze the population of migratory and resident wild bird species from Marambaia island, located in the municipality of Mangaratiba, Rio de Janeiro state, regarding the presence of microorganisms in blood smears during the year of 2009. In order to achieve the goal, 86 individuals of 22 bird species were captured using mist nets; peripheral blood was collected and blood smears performed. The birds were released after examined and sampled in situ. The diagnostic results were 11 (12.80%) birds positive for Plasmodium sp., one (1.16%) for microfilaria and 16 (18.60%) for Borrelia sp. Ticks identified as Amblyomma sp. (Ixodidae) were observed parasiting the sampled birds, suggesting that a relationship parasite-vector-host exists between these ticks and the Borrelia genus. This study should be expanded to other regions so that its results may favour other surveys, focused on conservation of wild birds in their habitat.(AU)

Malária em mulheres de idade de 10 a 49 anos, segundo o SIVEP- Malária, Manaus, Amazonas, 2003-2006 / Malaria among women aged 10 to 49 years, according to SIVEP-Malaria, Manaus, State of Amazonas, 2003-2006

INTRODUÇÃO: O Sistema de Informação de Vigilância Epidemiológica SIVEP-Malária é um sistema de informação onde são notificados os casos de malária diagnosticados no Brasil, desde 2003. Este estudo analisou os casos de malária notificados em mulheres de 10 a 49 anos de idade, segundo a presença ou ausência de gestação no período de 2003-2006. MÉTODOS: Foi solicitado à Fundação de Vigilância em Saúde, a autorização para avaliação dos dados. RESULTADOS: Foram analisados 13.308 casos notificados no período, sendo 815 (6,1 por cento) registrados em gestantes. Houve diminuição gradativa do número absoluto de casos entre gestantes e não gestantes. Em relação à espécie, 14,3 por cento dos casos notificados foram causadas pelo Plasmodium falciparum; 85 por cento pelo Plasmodium vivax e 0,6 por cento pela associação dos dois. A frequência da infecção por Plasmodium falciparum foi maior entre gestantes que não gestantes (p>0,05). Embora a maior parte dos casos residam na zona leste da cidade, a zona oeste apareceu como o local de provável infecção em 39 por cento dos casos. Observou-se picos endêmicos de malária entre as não gestantes nos meses de julho e agosto dos quatro anos analisados. CONCLUSÕES: Os dados mostram que o SIVEP-Malária é importante ferramenta para o conhecimento da distribuição da malária que deve ser usado para controle da endemia. Entretanto, os dados dos primeiros anos de funcionamento tiveram sua qualidade comprometida por falhas no preenchimento, usando o campo de notificação gravidez como exemplo.

INTRODUCTION: The SIVEP-Malaria Epidemiological Surveillance Information System has been in use for notification of malaria cases diagnosed in Brazil since 2003. This study analyzed malaria cases notified among women aged 10 to 49 years between 2003 and 2006, according to the presence or absence of pregnancy. METHODS: Authorization to evaluate the data was requested from the Health Surveillance Foundation (FVS). RESULTS: Over this period, 13,308 malaria cases were notified, of which 815 (6.1 percent) were among pregnant women. There was a gradual decrease in the absolute numbers of cases among pregnant and non-pregnant women. Regarding species, 14.3 percent of the notified cases were caused by Plasmodium falciparum; 85 percent by Plasmodium vivax and 0.6 percent by both of them. The frequency of Plasmodium falciparum infection was greater among pregnant women than among non-pregnant women (p > 0.05). Although most of the cases lived in the eastern zone of the city, the western zone appeared to be the likely location of infection in 39 percent of the cases. Endemic peaks of malaria in July and August were observed among the non-pregnant women in all four years analyzed. CONCLUSIONS: The data showed that SIVEP-Malaria was an important tool for determining the distribution of malaria cases and that it should be used for controlling the endemic disease. However, the data from its first four years of operation showed that the quality was compromised by data entry failures, using the field of notification of pregnancy as an example.