SAN FRANCISCO (KGO) -- Preliminary data out of South Africa is giving the world insight into how strong omicron really is. The South African Medical Research Council just reported this variant may ...

As the COVID-19 pandemic progresses, researchers say it is important to track how the coronavirus mutates because it could affect the efficacy of a vaccine. Like all living cells, viruses evolve their ...

New research suggests that Pfizer’s COVID-19 vaccine can protect against a mutation found in two highly contagious variants of the coronavirus that erupted in Britain and South Africa. Those variants ...

Chinese researchers have identified a key mutation in the Ebola virus that may explain why one of the deadliest outbreaks in recent history spread so widely and persisted for so long. Their findings ...

LONDON (Reuters) - British scientists are trying to establish whether the rapid spread in southern England of a new variant of the virus that causes COVID-19 is linked to key mutations they have ...

NAIROBI, Kenya (AP) - Another new variant of the coronavirus appears to have emerged in Nigeria, Africa’s top public health official said Thursday, but he added that further investigation was needed.

SAN FRANCISCO -- A case of the coronavirus variant was detected in Southern California Wednesday, while a second suspected case has been identified in Colorado. According to officials, the COVID-19 ...