Novidades (preocupantes0 sobre a covid-19
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Infection with the coronavirus SARS-CoV-2 can cause memory loss, strokes and other effects on the brain. New evidence suggests that the coronavirus’s assault on this organ could be multipronged: it might directly attack certain brain cells, reduce blood flow to brain tissue or trigger production of immune molecules that harm brain cells. Researchers hope that growing evidence will point the way to better treatments.
Will COVID become a disease of the young?
Countries with high rates of vaccination, such as Israel, the United States and the United Kingdom, are experiencing an ever-increasing proportion of new infections in younger, unvaccinated age groups. The overall risk of severe disease in children remains low. But the trend highlights the possibility that subsequent waves of community spread could be driven by young people, especially in the presence of new, more transmissible variants. Some nations have responded by offering vaccination to ever-younger groups — Israel vaccinates children as young as 12. Others question whether those doses are needed more urgently elsewhere.
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