The aircraft carrier USS Theodore Roosevelt, docked at Naval Base Guam in Apra Harbor in April. Photo: Tony Azios/AFP via Getty Images

One in five young adult U.S. service members aboard the USS Theodore Roosevelt to test positive for the novel coronavirus and participate in a study conducted by the Navy with the CDC reported no symptoms.

Why it matters: This is the first time the CDC has examined the effects of COVID-19 among healthy young people "in close quarters," a CDC epidemiologist told reporters, per Stars and Stripes. A key finding was that preventive measures, "such as using face coverings and observing social distancing, reduced risk for infection," the report notes.

  • 60% of the 382 young service members to participate in the Navy investigation had reactive antibodies, while 59% of those also had neutralizing antibodies — "a promising indicator of at least short-term immunity," the researchers wrote.
  • Common symptoms among study participants included muscle pain, fever, chills and a loss of taste or smell.

The big picture: 1,273 of the nearly 4,800 crew members tested positive for COVID-19 following the outbreak aboard the aircraft carrier in April. A Navy sailor who had been assigned to the ship died in April of complications from the virus.

  • Capt. Brett Crozier was removed from the ship after he pleaded with the Navy in an April letter to address the situation, and acting Navy Secretary Thomas Modly resigned after apologizing for saying the captain was "too naive or too stupid to be a commanding officer of a ship like this."

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Updated Sep 18, 2020 - Health

World coronavirus updates

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Data: The Center for Systems Science and Engineering at Johns Hopkins; Map: Axios Visuals

Though health workers represent less than 3% of the population in many countries, they account for around 14% of the coronavirus cases reported to the World Health Organization, WHO announced Thursday.

Why it matters: The WHO called on governments and health care leaders to address threats facing the health and safety of these workers, adding that the pandemic has highlighted how protecting them is needed to ensure a functioning health care system.

Caitlin Owens, author of Vitals
Sep 18, 2020 - Health

Millions of COVID-19 vulnerable adults tied to schools

Illustration: Aïda Amer/Axios

At least 42% of school employees are vulnerable to the coronavirus, and at least 63.2% of employees live with someone who is at increased risk, according to a new study published in Health Affairs.

Why it matters: We know children can catch and spread the virus. This study emphasizes why minimizing risk if and when schools reopen is crucial.

Updated 1 hour ago - Politics & Policy

Coronavirus dashboard

Illustration: Sarah Grillo/Axios

  1. Global: Total confirmed cases as of 7 a.m. ET: 30,804,120 — Total deaths: 957,348— Total recoveries: 21,062,785Map.
  2. U.S.: Total confirmed cases as of 7 a.m. ET: 6,766,631 — Total deaths: 199,268 — Total recoveries: 2,577,446 — Total tests: 94,211,463Map.
  3. Education: What we overlooked in the switch to remote learning
  4. Politics: In reversal, CDC again recommends coronavirus testing for asymptomatic people.
  5. Health: The dwindling chances of eliminating COVID-19.
  6. World: Guatemalan president tests positive for COVID-19 — The countries painting their pandemic recoveries green.