COVID walkouts: Why Omicron is pushing teachers and students to leave the classroom As school districts experience uniquely low student attendance, who exactly wants schools open?

Omicron appears to have evolved separately from the Delta variant, descending from another strain that appeared in mid-2020. Some scientists speculate it may have accumulated so many changes while ...

A painful sore throat is a signature symptom of an Omicron subvariant called NB.1.8.1, or Nimbus. It now makes up about a ...

As Omicron moved from person to person, its descendants gained more mutations. Sometimes two Omicron viruses would wind up in the same cell, which would produce new hybrid viruses with a mix of ...

Vitamin D deficiency still contributes to COVID-19 severity in the post-Omicron era, though risks are reduced compared to ...

Omicron is associated with a two-thirds reduction in the risk of hospitalization compared to Delta, according to a Scottish study. A separate paper from South Africa put the same figure at 80%.

Omicron is the 15th letter in the Greek alphabet. It uses the uppercase "Ο" and lowercase "ο" symbols. According to the Merriam-Webster dictionary , its literal translation in Greek means "small o." ...

Omicron also shows less aptitude for fusing cells together, which creates masses that are a hallmark of severe covid-19 in autopsies. Advertisement. Advertisement.

The Omicron variant of coronavirus is spreading quickly in several countries where it has hit. Even if it causes only mild disease – and that’s far from certain – that’s alarming.

While omicron seems to provoke milder illness for many people, "the truth is that it's probably somewhere in between what you think of as a common cold or flu and the COVID that we had before ...

A new variant, Omicron, very effectively evades the neutralizing antibodies of the Pfizer vaccine regimen, according to a recent study. Here we describe the mutations in the Omicron Spike protein.

The Omicron patients were also younger, and more likely to be vaccinated, than were those with previous variants, which may partially account for the milder illness.