Health

The US Centers for Disease Control and Prevention has announced new testing requirements for travelers arriving from the UK, but research by the agency’s own scientists shows the rule may have only a small impact on the spread of the new UK strain of coronavirus. Starting Monday in the UK, passengers must have a negative

A health care worker who experienced an allergic reaction after receiving a Moderna Covid-19 vaccine at Boston Medical Center on Christmas Eve tells CNN he has a history of allergies. This is the first known case of allergic reaction from a Moderna coronavirus vaccine, although there have been at least six similar reported cases in

The associations between vaping cannabis and respiratory health symptoms haven’t been fully known before — but one new study has revealed a key discovery. The study, which published Tuesday in the journal JAMA Network Open, found that vaping cannabis at any frequency was linked with symptoms of bronchitis and wheezing in young adults around 19

Dr. Anthony Fauci turns 80 on Thursday, but don’t expect him to get philosophical on his big birthday. “I’m afraid if you sort of start dropping back and philosophizing about things, you could take your attention away from the job that we have,” he told CNN. “So, I will leave the philosophizing to another day.”

The nearly yearlong coronavirus pandemic has been full of gloomy numbers but Wednesday brought an encouraging one — more than 1 million people have received their first shot of a Covid-19 vaccine. And that reported number is low, because many doses administrated in recent days have yet to be tabulated in the figures from the

Michael Worobey, a biologist at the University of Arizona, has seen more than 100,000 different strains of the virus that causes Covid-19. But when he saw the new variant from the UK, he noticed something different. “This is the first variant I’ve seen during the whole pandemic where I took a step back and said:

Thousands more families just lost a loved one this holiday season as the US reported its second-highest number of coronavirus deaths in one day — 3,401 on Tuesday, according to Johns Hopkins University. And in nine states, more people are hospitalized with Covid-19 than at any other point in this pandemic: Alabama, Arizona, Arkansas, California,

In June, Houston’s United Memorial Medical Center was so overwhelmed by the pandemic that two of its wings had been transformed into Covid-19 wards. Now, there are three. Dr. Joseph Varon, chief medical officer, hadn’t had a day off since the virus hit months earlier. He still hasn’t. Back then, ICU nurse Tanna Ingraham was

The Trump administration will purchase an additional 100 million doses of coronavirus vaccine from Pfizer, the US Department of Health and Human Services announced Wednesday. Pfizer will deliver at least 70 million doses by June 30, and the rest will be delivered no later than July 31, according to a news release. With this agreement,

The United Kingdom has identified a new, more contagious coronavirus variant linked to a recent surge in cases in England. The new mutation is being called VUI-202012/01 — the first “Variant Under Investigation” in the UK in December 2020. While scientists hunt for more information about the variant, its impact is already being felt, with

Teens are struggling during the pandemic, with social isolation, loss and financial woes on top of what’s already a tumultuous time in their young lives. Parents worry it will only get worse as holiday celebrations are muted or even canceled in light of the mounting Covid-19 death toll and hospitalizations. CNN talked to pediatrician and

The high number of holiday travelers during the pandemic has the nation’s top infectious disease expert worried. “I know everyone wants to get back to the time when Christmas was a situation where you could have many, many guests indoors, congregating, having fun together,” Dr. Anthony Fauci, the long-time director of the National Institute of

The pandemic’s silver linings have been few and far between — reduced work commutes for some, no racist uncle at Thanksgiving and now socially distant Santa. For all of you tearing out your hair over not being able to take pictures of your child on some stranger’s lap at the mall, hear me out. My