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

To most people on the planet, the Covid-19 pandemic is over. But for many scientists who have been tracking the largest global infectious disease event in the era of molecular biology, there is still ...

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

Dec. 3, 2025 A unique vaccine rollout in Wales gave researchers an accidental natural experiment that revealed a striking reduction in dementia among seniors who received the shingles vaccine. The ...

Research on SARS-CoV-2 in zoo tigers, lions, and hyenas shows rapid viral evolution and adaptation, offering insights into cross-species transmission dynamics.

A recently discovered virus in a Russian bat that is similar to SARS-CoV-2, the virus behind COVID-19, is likely capable of infecting humans and, if it were to spillover, is resistant to current ...

Research at Boston University that involved testing a lab-made hybrid version of the SARS-CoV-2 virus is garnering heated headlines alleging the scientists involved could have unleashed a new pathogen ...

A zoo outbreak shows how SARS-CoV-2 rapidly evolves in animals, revealing why monitoring COVID-19 in wildlife is vital for ...