Brazil detects the first case of a South African variant, with a serious shortage as the number of deaths increases
The Covid variant of the United Kingdom is now the most common strain circulating in the United States, according to the CDC
“A biological Fukushima”: the deaths of Brazil’s COVID-19 on its way to the worst of the American wave
“A biological Fukushima”: the deaths of Brazil’s COVID-19 on its way to the worst of the American wave