Columbia University's Low Memorial Library in New York City. Photo: James Leynse/Corbis via Getty Images

Columbia University announced Sunday night it canceled classes for Monday and Tuesday and plans to hold remote lessons for the rest of the week after a member of its community was quarantined following exposure to the novel coronavirus.

Why it matters: The Ivy League school is the latest educational institution to suspend in-person classes and move studying online in response to the outbreak as the virus continues to spread across the U.S., which now has more than 500 cases, per data from Johns Hopkins and state health departments.

What they're saying: U.S. Surgeon General Jerome Adams told CNN earlier Sunday that it was time to think about canceling large gatherings and closing schools "to prevent more deaths" as the U.S. moves into a "mitigation phase."

The big picture: Schools across Washington state, one of the areas worst hit by the virus, began to close at the start of this month. The University of Washington announced Friday it was moving classes online in an effort to limit the spread of COVID-19. Seattle University and Northeastern's Seattle campus have also moved to remote classes.

  • In New York, Barnard College, which is affiliated with Columbia University, followed Columbia's measures and announced it was switching to remote classes.
    • In Westchester County, New York, Scarsdale Public Schools said Sunday after a middle school faculty member tested positive for the virus it was closing all district schools March 9–18 for "cleaning, progress monitoring, and social-distancing."
  • In California, Stanford University canceled in-person classes for two weeks starting Monday after a faculty member tested positive for the virus and two students self-isolated over possible exposures, though they displayed no symptoms.
  • In Texas, Rice University in Houston announced Sunday it had canceled in-person classes for the week after an employee tested positive.

Elsewhere in the U.S., schools and colleges including Vanderbilt University in Tennessee and the University of California, Los Angeles have stepped up measures to combat the threat of the virus.

Go deeper:

Go deeper

Pompeo: Trump administration is "looking at" TikTok ban

Secretary of State Mike Pompeo told Fox News' Laura Ingraham on Monday that the Trump administration is "looking at" a ban on Chinese social media app TikTok.

Why it matters: Lawmakers have long expressed fears that the Chinese government could use TikTok to harvest reams of data from Americans — and actions against the app have recently accelerated worldwide, highlighted by India's ban.

"Hamilton" is a streaming hit for Disney+

Data: Google Trends; Chart: Andrew Witherspoon/Axios

The debut of "Hamilton" on Disney+ last Friday sent downloads of the app soaring over the weekend.

Why it matters: With theaters closed until 2021, "Hamilton" is the biggest litmus test for whether Broadway will ever be able to successfully transition some of its iconic hits.

Wall Street is no longer betting on Trump

Illustration: Sarah Grillo/Axios

Betting markets have turned decisively toward an expected victory for Joe Biden in November — and asset managers at major investment banks are preparing for not only a Biden win, but potentially a Democratic sweep of the Senate and House too.

Why it matters: Wall Street had its chips on a Trump win until recently — even in the midst of the coronavirus-induced recession and Biden's rise in the polls.