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Yellow fever is a non-contagious viral disease that has two cycles of transmission: wild and urban. In the first, the virus circulates among monkeys, being transmitted in Brazil by mosquitoes of the genus Emagogue And Sabethes. In the second, it circulates among humans, being transmitted from the Aedes aegypti. Brazil has not had cases of urban yellow fever since 1942, but the wild version can accidentally affect people who live near, or frequent, forests and forests. This is what happened in [...]

A Brazilian study published in the journal Earth & Environment Communications shows how wildfires and forest fires for agriculture affect the formation of rain clouds in the Amazon. According to the authors, aerosols (tiny solid particles and liquid droplets emitted into the atmosphere by fire) prevent cloud droplets from freezing when the atmosphere is humidified, but can also promote freezing when the atmosphere is dry. This alters the natural functioning of clouds and their typical [...]

Prática regular de exercícios de força muscular Associado com atividades aeróbicas pode reduzir significativamente a mortalidade de Câncer, indica um estudo publicado em Jornal internacional de nutrição comportamental e atividade física. Os autores realizaram uma revisão sistemática de estudos epidemiológicos sobre o assunto e concluíram que exercícios como tabela, agachamento E linha reduz a mortalidade [...]

Anticoagulant heparin reduces the risk of death from complications of COVID-19 by 78% when given in therapeutic dose as soon as the patient arrives at the hospital with signs of respiratory failure, according to a study published this Thursday (14/10) in British Medical Journal. Currently, the World Health Organization (WHO) recommends for these cases only a prophylactic dose of the drug (indicated to prevent thrombosis), which is four times lower than the therapeutic dose and showed no [...]

Researchers from the Federal University of São Carlos (UFSCar) in the state of São Paulo, Brazil, in collaboration with colleagues from University College London in the United Kingdom, have discovered an efficient, simple and inexpensive way to predict the risk of functional disability. in older people. They analyzed data from over 3,000 over 60s living in England and found that slow walking alone can be considered a predictor of the loss of the ability to perform basic and [...]

Acompanhando, desde o início do ano passado, os pacientes do sexo masculino que tiveram COVID-19, o andrologista Jorge Hallak, professor da Faculdade de Medicina da Universidade de São Paulo (FM-USP) e coordenador do Grupo de Estudos em Saúde Humana do Instituto de Estudos Avançados (IEA-USP), começou a observar que os resultados dos exames sua fertilidade e hormônios permanecem alterados mesmo meses após a recuperação da [...]

El estudio se realiza en Brasil. Investigadores avanzan en la vacuna en aerosol nasal COVID-19. Un grupo de investigadores brasileños desarrolla una vacuna en aerosol nasal contra el covid. Además de ser de bajo costo y capaz de proteger contra diversas variantes de coronavirus, logró resultados positivos en los primeros experimentos de antígenos con animales. “Pruebas preliminares con dos dosis de antígenos prototipo han permitido generar altas [...]

Using a technique known as drug repositioning, researchers at the University of São Paulo’s Institute of Biomedical Sciences (ICB-USP) have discovered seven possible drugs to inhibit replication of the novel coronavirus. The products are already approved by the Food and Drug Administration (FDA, the US regulatory agency), which would facilitate the transition to clinical trials if their efficacy were demonstrated in vitro, in tests carried out with cell lines. The results of the [...]

A new study has found that the dangerous combination of weak muscle and abdominal fat can lead to a significant loss of gait speed in older people. The results of the study were published in the journal “Age and Aging”. The study was conducted by researchers from the Federal University of Sao Carlos (UFSCar) in the state of Sao Paulo, Brazil, in collaboration with colleagues from University College London (UCL) in the United Kingdom. A slower gait is a natural result of the aging [...]