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Coronavirus can infect brain tissue, affect memory, language: Brazilian study
Publicado em 16 outubro 2020
SARS-CoV-2, the virus that causes COVID-19, is capable of infecting brain tissue and affecting the structure of the cortex, a region of the brain responsible for functions such as memory, consciousness, and language, according to a Brazilian study released on Thursday.
“We demonstrated for the first time that the SARS-CoV-2 virus infects and replicates in astrocytes and this can decrease the viability of neurons,” said Daniel Martins de Souza, a professor at the Institute of [...]
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Amazon city of Manaus may have reached ‘herd immunity’: study
Publicado em 23 setembro 2020The Brazilian city of Manaus, which was devastated by the coronavirus pandemic, may have suffered so many infections that its population now benefits from “herd immunity,” according to a preliminary study. Published on the website medRxiv, the study analyzed infection data with mathematical modeling to estimate that 66 percent of the population had antibodies to the new coronavirus in Manaus, where the pandemic’s passage was as fast as it was brutal. That may be sufficiently [...]ver notícia -
A shocking find : new high-voltage electric eels revealed
Publicado em 10 setembro 2019Call it a shock discovery: DNA research has revealed two entirely new species of electric eel in the Amazon basin, including one capable of delivering a record-breaking jolt. The findings are evidence, researchers say, of the incredible diversity in the Amazon rainforest — much of it still unknown to science — and illustrate why it is so important to protect a habitat at risk from deforestation, logging and fires. “In spite of all human impact on the Amazon rainforest in the [...]ver notícia