Preprint: Omicron BA.1 infection in mink leads to symptomatic disease with lung pathology and transmission

Experimental infection of American mink with SARS-CoV-2 Omicron variant BA.1 show that minks remain virus RNA positive for days, develop clinical signs and histopathological changes, and transmit the virus to uninfected recipient.  More...

Omicron specific booster no better than standard Moderna booster when tested on macaque monkeys

“Omicron boost may not provide greater immunity or protection compared to a boost with the current mRNA-1273 vaccine”

A study in monkeys showed an omicron-specific booster was not significantly different from Moderna’s conventional booster.  More...