The United States is facing a COVID-19 surge this summer as the more contagious delta variant spreads.
More than 613,000 Americans have died from COVID-19 and over 4.2 million people have died worldwide, according to real-time data compiled by the Center for Systems Science and Engineering at Johns Hopkins University.
Just 57.9% of Americans ages 12 and up are fully vaccinated against COVID-19, according to data from the Centers for Disease Control and Prevention.
The CDC on Tuesday, citing new science on the transmissibility of the delta variant, changed its mask guidance to now recommend everyone in areas with substantial or high levels of transmission -- vaccinated or not -- wear a face covering in public, indoor settings.
Here's how the news is developing today. All times Eastern.
Jul 27, 2021, 1:10 PM EDT
Louisiana reports 2nd highest daily case count since January
Louisiana is in a "continued surge," logging 6,797 new daily cases on Tuesday, the second highest single-day case count since Jan. 6, the state’s Department of Health said.
The department said 99.56% of the cases are linked to community spread, not congregate settings like nursing homes.
New Orleans city officials said Monday that hospital capacity in the region and the state are being stretched to the limits due to a large uptick in hospitalized COVID-19 patients. New Orleans officials said 97% of the hospitalized COVID-19 patients in the state are unvaccinated.
Jul 26, 2021, 7:46 PM EDT
Delta variant is 'a whole new virus,' St. Louis health official
St. Louis' top health official talked with ABC News Monday about Missouri's rising coronavirus cases and gave a stark warning to the rest of the country.
“The delta variant is a whole new virus," Dr. Sam Page, the county executive for St. Louis County, Missouri, told ABC News.
Since June, Missouri’s daily case average has surged by 500%, with the state now reporting its highest number of new infections since mid-January. Hospital admissions have more than doubled in recent weeks. They are up by 125% in the last month, according to Page.
At the same time, vaccinations have seen a slight increase the county, Page said. However, he reiterated that it will be at least another month before the county sees full effect of the vaccines in those patients.
Staff Sergeant Herbert Lins of the Missouri Army National Guard administers the Covid-19 vaccine to a resident during a vaccination event, Feb. 11, 2021, at the Jeff Vander Lou Senior living facility in St Louis.
Michael Thomas/Getty Images
“We just wish that we could get people vaccinated sooner because the illness has an unfortunate loss of life associated with it. And that's just a terrible thing to watch,” Page said.
Page said there was no “silver bullet” that will help increase vaccination rates across the state, or drive down cases immediately, but said that officials must work together fast.
“It's going to be multifactorial, a lot of education, a lot of time, a lot of comforting,” he said.
-ABC News' Cheyenne Haslett and Arielle Mitropoulos
Jul 26, 2021, 3:45 PM EDT
US moved into ‘high’ community transmission category per CDC
The Centers for Disease Control and Prevention is now categorizing the U.S. as having "high" community transmission, with nearly 62% of counties in the nation reporting high (43.79%) or substantial (18.17%) transmission.
An EMS technician shows a COVID-19 positive test strip, July 26, 2021, in Miami.
Marta Lavandier/AP
New York County, which includes Manhattan, is among those now reporting substantial community transmission.
One month ago, only 8% of counties were reporting high transmission.
Louisiana, Florida, and Arkansas have the country's highest case rate with over 300 new cases per 100,000 residents.
People walk down Bourbon Street as Louisiana rises to worst COVID-19 outbreak in U.S. amid Delta variant, in New Orleans, July 23, 2021.
Kathleen Flynn/Reuters
Missouri follows closely behind with 200 new cases per 100,000 residents.
Hospitalization numbers are also rising. More than 27,300 COVID-10 patients are in hospitals across the country -- a 36.8% jump in the last week.
-ABC News’ Arielle Mitropoulos
Jul 26, 2021, 2:44 PM EDT
Dept. of Veterans Affairs mandates vaccine
Department of Veterans Affairs Secretary Denis McDonough announced Monday that COVID-19 vaccines will be mandatory for the department’s health care personnel.
Four VA employees, all of whom were unvaccinated, died in recent weeks, the department said. At least three of those cases were linked to the delta variant.
VA employees will have eight weeks to be fully vaccinated.
McDonough said this mandate is "the best way to keep Veterans safe, especially as the Delta variant spreads across the country."
