Covid 19 variant boosters, what’s the difference?

As Covid-19 fades from headlines, many people still suffer long-term health effects of the pandemic. Sebastian Gollnow/picture alliance/Getty Images CNN —  Three years after the World Health Organization declared the Covid-19 pandemic, life has not returned to normal...

  The millions of Norway rats that live alongside New Yorkers are among the animals that can catch the virus that causes Covid-19, a new study says. However, reports of the virus spreading from any types of animals to humans remain rare. Pets like cats, dogs and...

Djokovic, who is unvaccinated against Covid-19, said last month that he had hoped for a "positive result" on being able to receive special permission to play tournaments in the US. Daniel Pockett/Getty Images/FILE CNN —  Time might have run out for Novak Djokovic to...

The Norwegian Gateway cruise ship is moored at PortMiami on Jan. 7 in Miami. The Centers for Disease Control and Prevention dropped its advisory warning Wednesday for cruise travel after more than two years of warning Americans. Joe Raedle/Getty Images The Center for...