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."

Go deeper: Cuomo says all New York schools can reopen for in-person learning

The number of COVID-19 cases recorded in the U.S. surpassed 5 million on Sunday morning, per Johns Hopkins data.

The big picture: Presumptive Democratic presidential nominee Joe Biden noted in an emailed statement that 5 million "is more than the entire population of Alabama — or of more than half the states in our union, for that matter," as he blamed President Trump for his handling of the pandemic.

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

1. Global: Total confirmed cases as of 7 p.m. ET: 19,734,428— Total deaths: 728,612 — Total recoveries — 12,001,537 — Map.
2. U.S.: Total confirmed cases as of 7 p.m. ET: 5,036,387 — Total deaths: 162,851 — Total recoveries: 1,656,864 — Total tests: 61,792,571 — Map.
3. Politics: Pelosi says states don't have the funds to comply with Trump's executive order on unemployment — Mnuchin says Trump executive orders were cleared by Justice Department.
4. Public health: Ex-FDA head: U.S. will "definitely" see 200,000 to 300,000 virus deaths by end of 2020 — Fauci says chances are "not great" that COVID-19 vaccine will be 98% effective.
5. Schools: Nine test positive at Georgia school where photo showing packed hallway went viral — How back-to-school is playing out in the South as coronavirus rages on.

Former FDA commissioner Scott Gottlieb said on CBS News' "Face the Nation" that the coronavirus death toll in the U.S. will be "definitely" somewhere between 200,000 and 300,000 by the end of 2020.

Why it matters: "Whether we're closer to 200,000 or closer to 300,000 depends on what we do now and how it evolves," Gottlieb warned on Sunday as the U.S. surpassed five million confirmed coronavirus cases.

Ohio Gov. Mike DeWine (R) said on CNN's "State of the Union" Sunday that Americans shouldn't think testing for the coronavirus is "not reliable or doesn't work," after he received a false positive result from an antigen test last week.

Why it matters: DeWine is one of six governors who have agreed to pool their resources, along with the Rockefeller Foundation, in order to acquire 3 million antigen tests amid severe delays and the lack of a national testing strategy.

Six students and three staff members have tested positive for COVID-19 at North Paulding High School in Georgia, where a photo showing a hallway packed with maskless students went viral last week, the Atlanta-Journal Constitution reports.

Why it matters: The infections underscore the difficulty of reopening schools during the pandemic, which will require a rethinking of traditional routines in order to avoid outbreaks. The topic has become politically charged as President Trump pushes for schools to resume in-person classes in order to jump-start the economy.

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.

Ohio Gov. Mike DeWine (R) tested negative for COVID-19 for a second time after initially testing positive last week, he announced Saturday.

Why it matters: 73-year-old DeWine was set to meet President Trump Thursday on the tarmac at an airport in Cleveland and was tested as part of standard protocol.

Australian officials in Victoria announced Sunday 17 more deaths from COVID-19 — a new state and national record.

The big picture: Australia was on track to suppress the novel coronavirus in May, but cases have been spiking in Victoria in recent weeks, where a state of disaster was declared last week, enabling officials to introduce restrictions including a night-time curfew in state capital Melbourne.

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."

AUCKLAND, New Zealand — New Zealand has now gone 100 days with no detected community spread of COVID-19, the Ministry of Health confirmed in an emailed statement Sunday afternoon local time.

Why It Matters: New Zealanders are going to the polls on Sept. 19. Prime Minister Jacinda Ardern has been widely praised for her leadership that saw NZ lock down hard for several weeks before all domestic restrictions were lifted in June. She sees her government's response to and recovery from the coronavirus outbreak as key to her Labour Party being re-elected.