The Ba.4 and Ba.5 subvariants of omicron are now estimated to make up more than half of all COVID-19 cases in the United States. Here’s what to know. Less than six months after the omicron wave hit ...

The latest two sub variants have been added to the WHO’s list for monitoring (Getty Images) Two new sub-variants of Omicron are being investigated by the World Health Organisation (WHO) to assess ...

The omicron variant of the coronavirus has been dominant in the U.S. since December, but the version of omicron that drove the major infection surge during the winter now accounts for less than 2 ...

(NEXSTAR) – Booster shots targeting the most common strains of the COVID-19 omicron variant are arriving at pharmacies across the country this week. The new round of booster shots marks the first time ...

The WHO said in a Tuesday update that BA.2 has been increasing relative to the BA.2 sub-lineage – though the circulation of all omicron variants has been in decline. "BA.2 differs from BA.1 in its ...

Under experimental conditions, the Omicron variant of the coronavirus survives at least twice as long on surfaces like plastic, paper and skin than the original strain that emerged from Wuhan, China, ...

Anecdotal evidence suggests that the coronavirus omicron variant may be less likely than other variants to cause smell loss, a common Covid-19 symptom with potentially serious implications for brain ...