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A new state-by-state analysis shows a statistical association between high adherence to mask wearing and reduced rates of COVID-19 in the U.S. Charlie Fischer...

The numbers of recommended vaccine doses, including measles vaccine, administered to children decreased dramatically after the declaration of a national state of emergency on...

Cases of SARS-CoV-2 infection in Manaus, Brazil, resurged in late 2020, despite previously high levels of infection. Genome sequencing of viruses sampled in Manaus...

MERS-CoV Antibody Responses, Saudi...

An article published in the journal EBiomedicine by University of Barcelona researchers shows that the epigenetic endowment of each person influences the severity of...

A past COVID-19 infection does not completely protect against reinfection in young people, according to an observational study of more than 3,000 healthy members...

Beating the earth with his fists, a young man wails as the body of his father, who died after contracting COVID-19, is taken from...

Argentines around capital Buenos Aires are rebelling against tightened pandemic restrictions, brought back in this week as daily COVID-19 cases surged to record...