"It's the biggest experiment that's ever happened." In a stunningly short period of time, the delta variant has changed the course of the COVID-19 pandemic by evolving to become more transmissible ...

The Centers for Disease Control and Prevention listed the COVID-19 delta variant as one of its "variants of concern" (VOCs) on June 15. According to the CDC, VOCs can be more contagious, more ...

The following is a roundup of some of the latest scientific studies on the novel coronavirus and efforts to find treatments and vaccines for COVID-19, the illness caused by the virus.

Viruses have all kinds of tricks up their sleeves. It often does not take long for pathogens such as SARS-CoV-2 to adapt and escape immune recognition. Viruses with mutations, that evade immune ...

Viruses are masters at disguise. When they are pushed too far by our immune system, they send new virus variants into play ...

SAN FRANCISCO -- Preliminary data out of South Africa is giving the world insight into how strong omicron really is. The South African Medical Research Council just reported this variant may cause ...

SAN FRANCISCO -- A case of the coronavirus variant was detected in Southern California Wednesday, while a second suspected case has been identified in Colorado. According to officials, the COVID-19 ...

Learn more about the new COVID-19 variants Nimbus and Stratus, and certain symptoms like a stabbing sore throat that come ...

Patrick Vallance, the British government’s chief scientific adviser, said officials are concerned about the new variant because it contained 23 different changes, “an unusually large number of ...

Scientists documented a rare case of COVID-19 persisting for over 750 days in a man with advanced HIV. The virus, confined within the patient due to h ...