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Illustration: Eniola Odetunde/Axios

Although it's extremely rare for vaccinated people to contract the coronavirus, two new reports illustrate why it's important to get vaccinated, even if the high-risk people around you already have been.

Driving the news: An unvaccinated worker at a Kentucky nursing home caused "breakthrough" infections among vaccinated staff and residents, according to a CDC analysis.

  • 18 residents who had been fully vaccinated with the Pfizer vaccine were infected in the outbreak. Six became symptomatic. two were hospitalized and one died.
  • That means the Pfizer vaccine ended up being roughly 66% effective at preventing infection and 94% effective at preventing hospitalization and death.
  • In a separate analysis, the Chicago health department also identified 22 breakthrough COVID cases among 627 fully vaccinated nursing home residents and staff, including one death.

The big picture: As of April 13, the CDC had tracked just 5,814 reports of "breakthrough" infections, out of 75 million fully vaccinated Americans.

Go deeper

Updated Jul 30, 2021 - Health

DeSantis issues order barring Florida schools from mandating masks

Photo: Michael Reaves via Getty Images

Florida Gov. Ron DeSantis (R) on Friday issued an executive order that bars local school districts from requiring students to wear masks when they return to the classroom next month.

Why it matters: The spread of the Delta variant has led to a spike in new infections across the United States, triggering another round of debate about COVID guidelines in schools.

The Republicans' mixed mandate message

Illustration: Annelise Capossela/Axios

Republicans have expressed selective rage amid the rise of the Delta variant: They rail against the return of indoor masking but are far less vocal about vaccine requirements.

Why it matters: Masking may help reduce the spread of the coronavirus, but the real solution to the pandemic is getting more Americans vaccinated. Increased support for that — including the use of heavier-handed methods like mandates — will only increase its chance of succeeding.

DiDi to delist from NYSE under Chinese govt pressure

Illustration: Sarah Grillo/Axios

Chinese ride-hail giant DiDi said it will delist from the New York Stock Exchange, following a Chinese government crackdown on foreign listings.

Why it matters: This reflects how geopolitical tensions are bleeding into the capital markets.