New research by the University of Sydney offers important insights into how and when new coronavirus variants arise in bats.

Wastewater surveillance became a popular choice among public health officials looking to track rapid virus mutations and ...

Two new COVID-19 variants are spreading across the country and doctors in Connecticut are expecting they could bring an uptick in cases.

A new Covid-19 variant, Stratus (XFG or XFG.3), also known as “Frankenstein” due to its recombinant nature, has been ...

As new variants continue to emerge, there is growing evidence that global warming could influence transmission of the virus ...

Fresh surveillance shows COVID-19 is quietly heating up at the height of summer, fueling concerns about travel plans and back-to-school prep. According to the Centers for Disease Control and ...

A newly dominant strain of COVID-19, known as NB.1.8.1 or “Nimbus,” is now the most common variant circulating in the United States. According to recent data from ...

While most people will clear the virus and get a negative antigen test result within 10 days, some people may keep testing positive for longer than that, experts tell TODAY.com. And if you keep ...

The dreaded illness is on the rise once again with doctors reporting that the associated symptoms are more subtle than with ...

Ireland's public health guidelines remain the same: If you have any symptoms of Covid, stay at home until 48 hours after the ...

Since the start of the SARS-CoV-2 pandemic, several variants of the virus have developed into Variants of Concern (VOCs), as ...

What to know about COVID symptoms, testing and incubation as the new "razor blade throat" Nimbus variant has caused a summer 2025 spike.