The virus that causes COVID-19 is accumulating genetic mutations, one of which may have made it more contagious. The number of virus strains present in each zip code in Houston during the second wave ...

Several times since the coronavirus pandemic began, scientists from around the world announced that they’ve discovered new mutations in the virus’ genetic material, sending shivers down the spines of ...

Strictly speaking, viruses are not living organisms. They do, however, benefit from natural selection over time. The longer a virus exists within a community the more sophisticated its pathogenesis ...

Coronavirus doesn't seem to have changed in a way that makes people less or more sick. There's some evidence that a specific mutation called D614G may have made it easier for the virus to be ...