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 state prison in Marion, Ohio, is now the United States' largest known source of COVID-19 infections, according to a New York Times database.

Why it matters: With poor sanitary conditions and close quarters for inmates, U.S. prison and detention systems are dangerously susceptible to the coronavirus. Prisons around the country have become vectors for infection, prompting authorities to either release inmates or take other steps to mitigate the spread of the virus.

The big picture: 1,937 people, or nearly three-quarters of the prison's population, have been infected at the Marion Correctional Institute. 1 in 5 confirmed COVID-19 cases in Ohio can now be traced back to the state's prison system, according to the Times.

Go deeper: Coronavirus behind bars

Go deeper

Jul 29, 2020 - Health

Moderna vaccine protects against coronavirus in monkeys

Scientist Xinhua Yan works in the lab at Moderna in Cambridge, Mass. Photo: David L. Ryan/The Boston Globe via Getty Images

Moderna's experimental COVID-19 vaccine has induced a "robust" immune response and protection from the virus in the noses and lungs of monkeys, according to a study published in the New England Journal of Medicine Tuesday.

Why it matters: The National Institutes for Health, which co-developed the vaccine, noted in a statement Tuesday, "This is the first time an experimental COVID-19 vaccine tested in nonhuman primates has been shown to produce such rapid viral control in the upper airway."

DNC releases coronavirus protocols for August convention

Joe Biden on July 21 in New Castle, Delaware. Photo: Brendan Smialowski/AFP via Getty Images

The Democratic National Committee announced Monday that attendees for its August convention in Milwaukee must agree to daily coronavirus testing and protective self-isolation measures.

The big picture: The DNC is planning a pared-down convention with a smaller venue and remote business for most state delegations, who are advised not to travel to Milwaukee. The Republican National Convention, meanwhile, was forced to cancel its main Jacksonville programming due to coronavirus and security risks.

You’ve caught up. Now what?

Sign up for Mike Allen’s daily Axios AM and PM newsletters to get smarter, faster on the news that matters.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!