Data: The Center for Systems Science and Engineering at Johns Hopkins, Census Bureau; Note: The metros used are OMB's Combined Statistical Areas, which include surrounding communities; Chart: Andrew Witherspoon/Axios

A second wave of cities, including Boston, Detroit, New Orleans and Philadelphia, are seeing increases in confirmed coronavirus cases, and could become epicenters for the outbreak if they're not able to bring those cases under control soon.

Why it matters: Whether these cities can prevent their outbreaks from spiraling out of control will be a major test for the U.S.' ability to contain the virus.

New Orleans in particular is nearing a crisis, with hospitals already becoming overwhelmed and supplies of medical safety gear running low, per the NYT.

  • Orleans Parish has experienced the highest number of deaths per capita of any county in the U.S.

What we're watching: Other cities may have even higher numbers of cases, but just haven't tested enough people to know it.

Between the lines: The U.S. has finite medical resources, including personnel as well as medical supplies like ventilators. The more hotspots we have at one time, the higher the demand for these resources.

The bottom line: State or city borders will not contain the virus. It moved from a market in Wuhan, China to all 5o U.S. states within three months.

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Go deeper

Updated 2 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Sarah Grillo/Axios

  1. Global: Total confirmed cases as of 3 a.m. ET: 19,648,084 — Total deaths: 727,024 — Total recoveries — 11,941,723Map.
  2. U.S.: Total confirmed cases as of 3 a.m. ET: 4,998,105 — Total deaths: 162,425 — Total recoveries: 1,643,118 — Total tests: 61,080,587Map.
  3. Politics: Trump signs 4 executive actions on coronavirus aid — Democrats, and some Republicans, criticize the move
  4. Public health: Fauci says chances are "not great" that COVID-19 vaccine will be 98% effective — 1 in 3 Americans would decline COVID-19 vaccine.
  5. Science: Indoor air is the next coronavirus frontline.
  6. Schools: How back-to-school is playing out in the South as coronavirus rages on — Princeton, Johns Hopkins, Howard to hold fall classes online.
Updated 3 hours ago - World

Brazil coronavirus death toll tops 100,000 and case numbers surpass 3 million

Brazilian President Jair Bolsonaro posted a photo of himself to Facebook congratulating his soccer team, Palmeiras, for winning the state title Saturday, moments after the health ministry confirmed the national COVID-19 death toll had surpassed 100,000.

Why it matters: Brazil is only the second country to confirm more than 100,000 deaths from the coronavirus. On Sunday morning, it became the second country to surpass 3 million cases, per Johns Hopkins. Only the U.S. has reported more. Bolsonaro has yet to address the milestones. He has previously tested positive for COVID-19 three times, but he's downplayed the impact of the virus, which has crippled Brazil's economy.

Editor's note: This article has been updated with the latest coronavirus case numbers and more context.

Updated 5 hours ago - Politics & Policy

Republicans and Democrats react to Trump's coronavirus aid action

President Trump speaks to workers at a manufacturing facility in Clyde, Ohio, on Thursday. Photo: Scott Olson/Getty Images

Some Republicans joined Democrats in criticizing President Trump Saturday night for taking executive action on coronavirus aid, with Democratic leaders demanding the GOP return to negotiations after stimulus package talks broke down a day earlier.

Why it matters: Trump could face legal challenges on his ability to act without congressional approval, where the constitutional power lies on federal spending. Sen. Ben Sasse (R-Neb.) was the most vocal Republican critic, saying in a statement: "The pen-and-phone theory of executive lawmaking is unconstitutional slop."