Two hundred million Americans have received at least one dose of the COVID-19 vaccine, the White House announced Friday. That figure includes more than 1 million doses administered in 24 hours on Thursday, 534,000 of which were first doses.

"Today we hit a milestone: 200M people w/ at least one dose!" Cyrus Shahpar, the White House's COVID-19 data director, wrote on Twitter. "On avg., over 33,000 people have gotten their first dose, every hour of every day since mid-Dec 2020. Keep it up!"

-ABC News' Joshua Hoyos

Boston will require face masks in all indoor public settings beginning Aug. 27 at 8 a.m., Mayor Kim Janey announced in a Friday statement.

"We know that masks work best when everyone wears one," Janey said. "Requiring masks indoors is a proactive public health measure to limit transmission of the Delta variant, boost the public confidence in our businesses and venues, and protect the residents of our city who are too young for vaccination.”

-ABC News' William Gretsky

Republican Lt. Gov. Dan Patrick told Fox News Channel host Laura Ingraham that "African-Americans who have not been vaccinated" are the "the biggest group in most states" driving the spike in COVID-19 cases, during a Thursday interview.

Patrick doubled down on his comment, adding that "over 90% of them vote for Democrats and their major cities and major counties."

"It's up to the Democrats to get -- just as it's up to Republicans to try to get as many people vaccinated," he said. "In terms of criticizing the Republicans for this, we are encouraging people who want to take it to take it, but they are doing nothing for the African-American community that has significant high number of unvaccinated."

NAACP President Derrick Johnson pushed back in a statement: "Lt. Governor Dan Patrick lives in an alternate reality, where facts don’t matter," Johnson said.

"He’s delusional. Black Texans are not the driving force behind the surge of COVID cases in Texas. His statement is not only baseless, it’s racist. Falsely casting blame on the Black community is one of the oldest tricks in the book, and we expect better from an elected official.”

-ABC News' Brian Hartman

Children's of Mississippi, the state's only pediatric hospital, reported a record number of patients Thursday.

There are 28 children, all unvaccinated, with confirmed or suspected cases of COVID-19, the highest since the start of the pandemic, the hospital said on Facebook. Among those, eight children are in the intensive care unit, including five not yet old enough to receive the vaccine, the hospital said.

"The best way to protect ALL of Mississippi's kids from COVID-19 is for everyone age 12 and up to get vaccinated," said the hospital, which is part of the University of Mississippi Medical Center in Jackson.

Nearly 43% of Mississippi residents ages 12 and up are fully vaccinated, according to CDC data, one of the lowest rates in the country.

New York City botched its COVID-19 response, according to an investigation conducted by Scott Stringer, the city's comptroller, who released findings from his inquiry Wednesday.

According to Stringer, key emergency response agencies, including the health department and the NYPD, were intentionally excluded from communications and decision-making "when time was of the essence."

The comptroller also described persistent confusion about the chain of command between agencies and a significantly delayed response to the pandemic.

Officials waited until late February to even begin planning for a worst-case scenario, despite knowing about the impending crisis in January. Stringer called on the mayor, as well as the future mayor, to conduct a thorough review of the city's emergency planning process.

"We cannot erase the mistakes of the past," he said. "But we can make sure we are prepared for future emergencies."

-ABC News' Aaron Katersky