COPENHAGEN, Jan 31 (Reuters) - The BA.2 subvariant of the Omicron coronavirus variant, which has quickly taken over in Denmark, is more transmissible than the more common BA.1 and more able to infect ...

Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), the causal agent of the current coronavirus disease 2019 (COVID-19) pandemic, is a highly infectious virus and has claimed more than 6.8 ...

In a recent study posted in the Research Square* preprint server, which is under consideration at a Nature Portfolio Journal, researchers evaluated the pathogenicity and replication potential of ...

In this stock photo, a healthcare worker fills a syringe with the Pfizer COVID-19 vaccine at Jackson Memorial Hospital, Oct. 5, 2021, in Miami. Lynne Sladky AP The omicron BA.5 subvariant, which is ...

The Omicron COVID sub-variant BA.2 may be more dangerous than BA.1 and could pose a greater risk to public health, according to new research. BA.2 has made headlines in recent weeks and is the subject ...

Just because you had an omicron variant of COVID-19 in the last few months doesn't mean you won't get infected with the newly dominant BA.5 subvariant, according to a new study of what's been called ...

A recent study analyzed mRNA COVID vaccine effectiveness for immunocompromised adults during Omicron BA.4 and BA.5 predominance. The large, geographically diverse study confirms that overall ...

In mice, the BA.5-targeting bivalent booster now rolling out nationwide did an equally good job at thwarting the BA.5 omicron subvariant as the bivalent booster targeting its predecessor, BA.1, which ...