Miller talks with Marc Short, Pence's chief of staff, on March 24. Photo: Doug Mills-Pool/Getty Images

Vice President Mike Pence's press secretary Katie Miller has tested positive for the coronavirus, President Trump said Friday. The news comes a day after Trump's valet did the same.

Why it matters: This shows that, despite regular testing and measures to protect Trump and Pence, White House officials can still be — and are being — exposed to the virus.

Between the lines: Miller's positive diagnosis, which Axios has confirmed through additional sources, means that several people within the West Wing may have been exposed to the virus.

  • As Pence's spokesperson, she is in close contact with the vice president and has accompanied him on his recent travels across the country. She is also married to senior Trump adviser Stephen Miller, who works in the West Wing.
  • She did not respond to Axios' request for comment.

The latest: The news of Miller contracting the virus delayed Pence's Friday trip to Iowa by about an hour. Miller, who would normally travel with the vice president, wasn't on board Air Force Two today when Pence's team learned of the news.

  • But six aides who had been exposed to Miller were asked to deplane, per a senior administration official. All six tested negative, per a pool report.
  • Miller has not had direct contact with Trump recently, the official said. The official wouldn’t comment on her proximity to Pence.

Worth noting: Many news outlets decided not to reveal Miller's identity out of respect for her privacy. However, Trump told reporters Friday afternoon that "Katie" had tested positive for the virus.

  • Trump said Thursday that White House staff, who were being tested on a weekly basis, would be tested daily now.

Go deeper:

Air Force Two delayed after Pence staffer tests positive for coronavirus

Trump's personal valet tests positive for coronavirus

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MLB postpones Cardinals-Pirates series over coronavirus outbreak

Paul Goldschmidt #46 of the St. Louis Cardinals hits a single against the Pittsburgh Pirates seventh inning at Busch Stadium on July 25 in St Louis, Missouri. Photo: Dilip Vishwanat/Getty Images

Major League Baseball announced in a statement Sunday that it has postponed the St. Louis Cardinals' three-game series against the Pittsburgh Pirates, set to start Monday, because of a coronavirus outbreak.

Why it matters: St. Louis has had 13 games in a row postponed after seven players and six staff members tested positive for COVID-19 last week. The MLB announced Friday another Cardinals staff member and two more players tested positive for the virus. The MLB said "in light of the most recent positive test results," the league and the Cardinals "believe it is prudent to conduct additional testing while players and staff are quarantined before the team returns to play."

Go deeper: How baseball's coronavirus reckoning affects everything

Aug 10, 2020 - Health

New York reports new low positive coronavirus test rate

People physically distancing at tables in New York City's Times Square in June. Photo: Johannes Eisele/AFP via Getty Images

New York Gov. Andrew Cuomo (D) announced Sunday 515 people, or 0.78% of those tested, returned a positive reading for COVID-19 the previous day.

Why it matters: It's the lowest single-day positive rate since the start of the pandemic. It's another sign that the state that was once a global coronavirus epicenter is curbing the spread of the virus. "Our daily numbers remain low and steady, despite increasing infection rates across the country, and even in our region," Cuomo said in a statement. "But we must not become complacent: Everyone should continue to wear their masks and socially distance."

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How to do smarter coronavirus testing

Illustration: Eniola Odetunde/Axios

With testing once again a huge vulnerability to America’s coronavirus response, public health officials are calling for a revamped strategy that features the use of more tests, even if they're imperfect.

Why it matters: The system is overwhelmed by the demand for tests, and yet prolific testing is key to identifying asymptomatic or pre-symptomatic coronavirus cases. Experts say the solution is smarter testing — which doesn't require perfect accuracy.