Manal Mohammed is a senior lecturer of medical microbiology at the University of Westminster. Since the COVID variant Omicron emerged in late 2021, it has rapidly evolved into multiple subvariants.

(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 ...

COVID-19 vaccination before or during pregnancy was linked to lower risk for severe maternal disease in the delta or omicron variant periods, ...

A new omicron variant is quickly spreading across the U.S. just in time for the New Year. The strain, known as XBB.1.5, accounts right now for almost 41% of confirmed COVID-19 cases nationwide, ...

NEW YORK (WABC) -- The CDC is weighing a significant update to its mask information as the highly transmissible omicron variant sweeps across the nation. Federal health officials are expected to ...

As evidence mounts that the omicron variant is less deadly than prior COVID-19 strains, one oft-cited explanation is that viruses always evolve to become less virulent over time. The problem, experts ...

When the omicron variant first emerged last November, many doctors, researchers and scientists hoped that the new strain — while more transmissible — would cause fewer deaths. Indeed, early research ...

NEW YORK (WABC) -- There are rising concerns about the new omicron variant, as cases have now been confirmed in more than half the U.S. Early anecdotal reports seem to indicate those infected are ...

The BA.2.75 sublineage of the B.1.1.529 (omicron) variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) may escape neutralizing antibodies. The BA.2.75 sublineage (primarily the BA.2 ...

A new coronavirus variant, first detected two months ago, is making its way across the U.S. and spreading more quickly in the Northeast and West, new data released this week shows. The BA.2 variant ...

Like a Hollywood franchise that churns out sequel after mind-numbing sequel, Omicron is back. Mere weeks after the variant’s BA.2 lineage caused surges globally, two more Omicron spin-offs are on the ...

A new study analyzing the immune response to COVID-19 in a Catalan cohort of health workers sheds light on an important ...