The COVID Omicron sub-variant BA.2, informally dubbed the "Stealth Omicron" variant, is able to reinfect people who have already had Omicron, a new study suggests. BA.2 has been under close ...
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 ...
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 ...