Sign up for our daily briefing

Make your busy days simpler with Axios AM/PM. Catch up on what's new and why it matters in just 5 minutes.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Catch up on the day's biggest business stories

Subscribe to Axios Closer for insights into the day’s business news and trends and why they matter

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Stay on top of the latest market trends

Subscribe to Axios Markets for the latest market trends and economic insights. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Sports news worthy of your time

Binge on the stats and stories that drive the sports world with Axios Sports. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Tech news worthy of your time

Get our smart take on technology from the Valley and D.C. with Axios Login. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Get the inside stories

Get an insider's guide to the new White House with Axios Sneak Peek. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Axios on your phone

Get breaking news and scoops on the go with the Axios app.

Download for free.

Catch up on coronavirus stories and special reports, curated by Mike Allen everyday

Catch up on coronavirus stories and special reports, curated by Mike Allen everyday

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Denver news?

Get a daily digest of the most important stories affecting your hometown with Axios Denver

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Des Moines news?

Get a daily digest of the most important stories affecting your hometown with Axios Des Moines

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Twin Cities news?

Get a daily digest of the most important stories affecting your hometown with Axios Twin Cities

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Tampa Bay news?

Get a daily digest of the most important stories affecting your hometown with Axios Tampa Bay

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Charlotte news?

Get a daily digest of the most important stories affecting your hometown with Axios Charlotte

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Sign up for Axios NW Arkansas

Stay up-to-date on the most important and interesting stories affecting NW Arkansas, authored by local reporters

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

A teenager presses a cotton ball against his arm after receiving the Pfizer-BioNTech COVID-19 vaccine at the Oregon Health & Science University vaccination site on May 17. Photo: Alisha Jucevic/Bloomberg via Getty Images

An advisory panel for the Centers for Disease Control and Prevention is investigating a few reports of heart inflammation in young adults following their inoculation from two-dose mRNA vaccines.

Why it matters: Although the CDC says reports of myocarditis, or heart inflammation, have not exceeded expected rates, the condition can lead to rapid or abnormal heart rhythms and even sudden cardiac death.

Details: The few reports of inflammation following vaccination have largely been reported in young adults and adolescents, with symptoms typically seen within 4 days of receiving the shot, the panel said.

  • Cases of inflammation have been reported more often in men than women and more often following the second vaccine dose.

Where it stands: The Pfizer-BioNTech vaccine is the only coronavirus vaccine cleared for children by the Food and Drug Administration's emergency use authorization and the CDC's advisory panel. The vaccine is available for 12-to 15-year-olds.

Go deeper

May 23, 2021 - Health

Pfizer-BioNTech, AstraZeneca vaccines "highly effective" against COVID variants

People line up to get vaccinated at the Essa Academy school in Bolton, England, on May 15. Photo: Charlotte Tattersall/Getty Images

Two doses of the COVID-19 vaccines made by Pfizer-BioNTech or AstraZeneca are "highly effective" against variants first detected in India and the United Kingdom, health officials in England announced Saturday.

Why it matters: Some health experts have expressed concerns that contagious new variants could be more resistant against coronavirus vaccines, potentially prolonging the pandemic.

May 22, 2021 - World

At least 100 COVID-19 cases on Everest, guide says

A banner reading, "Stop ! No outside visitors. International Mountain Guides only!" can be seen at Everest base camp. Photo: PRAKASH MATHEMA/AFP via Getty Images

A Mount Everest climbing expert on Saturday told the AP there are at least 100 active coronavirus cases at the base camp.

Why it matters: The remarks from Lukas Furtenbach contradict statements from Nepalese officials who have denied knowledge of active infections among climbers and support staff during this season, AP reports.