variants

Why some variants of the coronavirus are more contagious – and how we can prevent them

New variants of coronavirus threaten to further strain the US system, said the head of the CDC

Regeneron says study shows that his cocktail of monoclonal antibodies works against coronavirus variants

As California lifted restrictions, a top health official worries about Covid-19 variants and the slow supply of vaccine

The city’s top health advisor supports the double mask as coronavirus variants spread

Greedy variants are a risk

What do coronavirus variants mean for your masks?

US Coronavirus: Now that new variants of Covid-19 are circulating, daily activities are more dangerous, says the expert

Modern shot protects against new virus variants; higher dose of anticoagulant keeps patients out of ventilators

New variants of the coronavirus are an urgent threat. What to know

The COVID SCIENCE-Moderna injection protects against new virus variants; higher dose of anticoagulant keeps patients out of ventilators

Modern reinforcing to fight Covid-19 variants