Tighter restrictions aimed at reining in surging coronavirus infections took hold in much of Italy and parts of Poland on Monday, while in France, Paris risks […]
In recent days, countries including Denmark, Ireland, and Thailand have temporarily suspended their use of AstraZeneca’s coronavirus vaccine after reports that some people who got a […]
When SARS-CoV-2, the virus that causes COVID-19, infects a human cell, it quickly begins to replicate by seizing the cell’s existing metabolic machinery. The infected cells […]