The latest variant, or sublineage, of SARS-CoV-2 to emerge on the scene, BA.2.86, has public health experts on alert as COVID-19 hospitalizations begin to rise and the new variant makes its way across ...

The omicron variant of SARS-CoV-2, the virus that causes COVID-19, has now been around for more than a year. Before omicron became dominant, there had been a quick succession of named variants of ...

An omicron subvariant is once again demonstrating immune-dodging abilities, posing a threat to both vaccinated and previously infected individuals. A report published Wednesday in the New England ...

With the rise of omicron came the fall of long-lasting protection from reinfection with the pandemic coronavirus SARS-CoV-2, according to a study published in Nature. Using population-wide data from ...

Recent SARS-CoV-2 variants such as BA.4 and BA.5 developed abilities missing from the first Omicron variants that allowed them to overcome humans' innate immunity, according to research from UCL. The ...

Georgia State University researchers have found that the Alpha, Beta and Delta variants of SARS-CoV-2 were substantially more fatal in mouse models than the original strain of the virus that causes ...