The symptoms of Covid have largely remained the same, despite the different variants. However, many patients with the new ...

A REPORT on a four year old study in Dar es Salaam Region has shown that original Covid-19 vaccines had reduced effectiveness ...

NEW YORK (WABC) -- Pfizer and BioNTech say if a variant that evades the vaccine emerges, they would be ready to produce a tailor-made shot against that new variant within about 100 days. The companies ...

The immune system’s first encounter with a virus or vaccine establishes a “starting template” that shapes its response to new ...

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 ...

CoV-2 variants now spread less efficiently in animals, lowering concerns that animal reservoirs could generate new variants ...

NEW YORK (WABC) -- Federal regulators are considering limiting the authorization of certain monoclonal antibody treatments that have not proved effective against the omicron variant of the coronavirus ...

The study evaluated GEO-CM04S1 in the K18-hACE2 lethal mouse model, comparing immune responses and efficacy to experimental MVA-vectored vaccine constructs expressing spike alone (S) or nucleocapsid ...