COVID updates: Secretary of Defense Lloyd Austin tests positive
He said he has mild symptoms and will be quarantining for five days.
As the COVID-19 pandemic has swept the globe, more than 5.4 million people have died from the disease worldwide, including over 825,000 Americans, according to real-time data compiled by Johns Hopkins University's Center for Systems Science and Engineering.
About 62% of the population in the United States is fully vaccinated against COVID-19, according to data from the Centers for Disease Control and Prevention.
Latest headlines:
US breaks weekly COVID-19 case record
The United States has recorded 2.2 million confirmed COVID-19 cases over the last week, setting a grim record as the highest number of cases confirmed in one week.
The previous record was set just a few days earlier from Dec. 22 to Dec. 29, when the U.S. confirmed 1.9 million COVID-19 cases. Before that, the previous record totaled 1.75 million cases from Jan. 5 to Jan. 11 at the start of 2021.
Some NJ schools go remote as cases surge
At least 10 of the 13 school districts in Hudson County, New Jersey are switching back to remote learning next week as the daily total of confirmed COVID-19 cases skyrocket in the state.
Bayonne, Jersey City, Harrison, Union City, West New York, Weehawken, Guttenberg, Hoboken, East Newark and North Bergen will go remote until Jan. 7 at the earliest.
On Thursday, New Jersey reported a record number of 27,975 positive daily tests. The previous record was 20,483, which was confirmed just one day earlier.
FDA to authorize boosters for 12- to 15-year-olds
The Food and Drug Administration is likely to authorize Pfizer COVID-19 booster shots for 12- to 15-year-olds next week, a source with direct knowledge of the plan told ABC News.
An authorization may come as early as Monday.
-ABC News' Eric Strauss
US pediatric COVID-19 hospital admissions hit all-time high
More COVID-19-positive children in the United States are being hospitalized each day than at any other point in the pandemic, according to newly updated federal data.
On average, just under 380 children with COVID-19 were admitted into the hospital daily between Dec. 22 and Dec. 28, according to data from the Centers for Disease Control and Prevention.
The country's pediatric COVID-19 hospital admission rate has nearly tripled in the past month, CDC data shows.
Nationwide, nearly 2,900 children are currently hospitalized with confirmed or suspected cases of COVID-19 -- approximately 1,300 more patients than a month ago -- according to data from the Department of Health and Human Services.
Less than a third of eligible children -- ages 5 to 17 -- in the U.S. are currently fully vaccinated against COVID-19.
Three new studies released Thursday by the CDC found COVID-19 vaccines to be safe and effective for children.
-ABC News' Arielle Mitropoulos
4 cruise ships report COVID outbreaks
At least four U.S. cruise ships are reporting COVID-19 outbreaks aboard, leading to them being denied entry to -- or turned away from -- foreign ports.
Holland America's Line Koningsdam was denied entry into Puerto Vallarta on Thursday after 21 crew members tested positive.
Additionally, the Carnival Freedom ship was turned away from the Caribbean Islands of Bonaire and Aruba on Wednesday and Thursday, respectively, after "a small number" of passengers aboard tested positive for the virus.
Officials in Aruba and Curacao also turned away Royal Caribbean's Odyssey of the Seas on Wednesday after 55 fully vaccinated crew members and passengers tested positive.
On the same day, passengers aboard the Seven Seas Mariner were not allowed to disembark in Cartagena, Colombia, after six crew members and one passenger tested positive for COVID-19.