Six years ago, on March 11, 2020, the World Health Organization declared COVID-19 a global pandemic. Here's what else ...

Contrary to prevailing belief, an evolutionary analysis finds no evidence that most viruses with epidemic or pandemic ...

Five years after the first cases of COVID-19 were reported, the World Health Organization is still reporting deaths from the virus. More than 3,000 people died in the last month, adding to the more ...

The timing of symptom onset depends on lots of factors, including the amount of virus to which someone was exposed, Hotez says. Their level of pre-existing immunity may also affect the likelihood or ...

Learn how scientists identified genetic clues that distinguish natural viral spillovers from lab-handled viruses — and why ...

"As these viruses continue to evolve, public health officials watch carefully to see whether new strains will be more easily spread or cause more severe disease, and they are continuously testing to ...

Anyone with worsening symptoms should contact their doctor or Healthline. People who have a weakened immune system, high-risk ...

Violet is a robot that can disinfect rooms and equipment with ultraviolet light, and shuts down when humans are around to ...

A Nov. 29 Threads post (direct link, archive link) makes a claim about the COVID-19 vaccine and its effect on the heart. “Your chance of dying from a heart attack from that ‘vaccine,’ according to ...