'Steady increase' in vaccines in past month, White House says
The U.S. saw its largest single-day increase in nearly nine months Friday.
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.
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House of Representatives reimposes mask mandate following new CDC guidance
The Office of the Attending Physician is now requiring all members and staff to wear “medical-grade” masks throughout the House of Representatives unless members are speaking in the hall of the House or individuals are alone.
Members and staff will once again be prohibited from stepping on the floor to vote without a mask, or risk incurring fines.
The new guidance follows the CDC’s latest recommendations and will not be in effect on the Senate side.
-ABC News' Ben Siegel
Biden to announce vaccine mandate for federal workers
President Joe Biden is expected to announce a vaccine mandate for the nation’s 2.1 million federal employees on Thursday, ABC News has learned.
Details around the policy are still being reviewed by the White House, however, sources familiar with the discussion told ABC News that employees who aren't vaccinated will abide by "stringent COVID-19 protocols like mandatory mask wearing – even in communities not with high or substantial spread - and regular testing."
Once enacted, this will be the largest vaccine mandate by a single employer of this pandemic.
New York City and the state of California announced Monday similar rules for their public employees.
White House sources also told ABC News that following the Centers for Disease Control and Prevention's new recommendations on indoor mask use, the president will wear a mask when he travels to areas where the transmission rates are high and he needs to be indoors.
-ABC News' Cecilia Vega and Sarah Kolinovsky
CDC issues alert, urging doctors to step up vaccines
Just hours after the Centers for Disease Control and Prevention changed its policy on indoor mask use for vaccinated Americans, the agency sent out an alert to doctors, pressing them to step up vaccines.
The Health Alert Network Health Advisory reiterated that vaccine coverage needed to go up "to prevent surges in new infections that could increase COVID-19 related morbidity and mortality, overwhelm healthcare capacity, and widen existing COVID-19-related health disparities."
As of Tuesday, 66.6% of Americans above the age of 12 have received one vaccine dose, however the rates are lower in several southern states including Louisiana, Alabama and Mississippi. Those states, the alert noted, have seen a major jump in COVID-19 cases, hospitalizations and deaths.
"Unvaccinated persons account for the majority of new COVID-19 infections, hospitalizations, and deaths," the CDC said in its alert.
-ABC News' Anne Flaherty
Cape Cod outbreak grows to 765
The COVID-19 outbreak in Provincetown, Massachusetts, has now grown to at least 765 people, officials said Tuesday.
The number of cases from the popular tourist destination have been increasing since the Fourth of July weekend.
Of these cases, 469 individuals are Massachusetts residents, 199 of whom reside in Provincetown, Town Manager Alex Morse wrote in a Facebook post.
The remaining individuals who tested positive reside in other states, or jurisdictions, he said.
There have been no reported deaths linked to the cluster so far, however, three people linked to it have been hospitalized. One of the patients was vaccinated, according to town officials.
-ABC News' Arielle Mitropoulos