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.

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Updated 43 mins ago - Politics & Policy

Coronavirus dashboard

Illustration: Annelise Capossela/Axios

  1. Global: Total confirmed cases as of 11:30 p.m. ET: 20,014,574 — Total deaths: 734,755 — Total recoveries — 12,222,744Map.
  2. U.S.: Total confirmed cases as of 11:30 p.m. ET: 5,089,416 — Total deaths: 163,425 — Total recoveries: 1,670,755 — Total tests: 62,513,174Map.
  3. Politics: Trump claims he would have not called for Obama to resign over 160,000 virus deathsHouse will not hold votes until Sept. 14 unless stimulus deal is reached.
  4. Business: Richer Americans are more comfortable eating out.
  5. Public health: 5 states set single-day coronavirus case records last week — A dual coronavirus and flu threat is set to deliver a winter from hell.
  6. Sports: The cost of kids losing gym class — College football is on the brink.
  7. World: Europe's CDC recommends new restrictions amid "true resurgence in cases."
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.