The head of the World Health Organization said Monday the emergence of new COVID-19 variants has raised questions about whether or not existing vaccines will work, […]
The Dutch government said on Monday it is extending until March 2 its night-time coronavirus curfew, the introduction of which last month sparked the country’s worst […]
Evidence is mounting that having COVID-19 may not protect against getting infected again with some of the new variants. People also can get second infections with […]