COVID-19 updates: Michigan, Minnesota, New Mexico leading nation in cases
Michigan has the highest infection rate, followed by Minnesota and New Mexico.
As the COVID-19 pandemic has swept the globe, more than 5.1 million people have died from the disease worldwide, including over 771,000 Americans, according to real-time data compiled by Johns Hopkins University's Center for Systems Science and Engineering.
Just 69% of Americans ages 12 and up are fully vaccinated against COVID-19, according to data from the U.S. Centers for Disease Control and Prevention.
Latest headlines:
Masks cut COVID-19 incidence by 53%, new analysis finds
Mask-wearing cuts COVID-19 incidence by 53%, according to a new analysis that pooled results from multiple studies.
The analysis, published Thursday in the medical journal The BMJ, found that mask-wearing, social distancing and hand-washing were all effective in reducing the spread of COVID-19.
The bulk of the studies included in the analysis were conducted before mass vaccinations. The researchers, who were from several universities in Australia, Scotland and China, said that more studies are needed to understand the effectiveness of these public health measures in the context of widespread vaccination coverage.
-ABC News' Guy Davies, Esra Demirel and Sony Salzman
Northeast, Midwest see biggest jump in cases, hospitalizations
The Northeast and Midwest are seeing the largest jump in cases and hospitalizations, according to federal data.
Twenty-seven states have seen at least a 10% jump in daily cases over the last two weeks: Arizona, Arkansas, Connecticut, Delaware, Illinois, Indiana, Iowa, Kansas, Kentucky, Maryland, Massachusetts, Michigan, Minnesota, Missouri, Nebraska, New Hampshire, New Mexico, New York, New York City, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Dakota, Tennessee, Utah, Vermont and Wisconsin.
Eighteen states have seen at least a 10% increase in hospital admissions over the last week: Georgia, Hawaii, Illinois, Indiana, Kentucky, Maine, Massachusetts, Michigan, Minnesota, Nebraska, New Hampshire, New Jersey, New Mexico, New York, Ohio, South Dakota, Texas and Wisconsin.
-ABC News' Arielle Mitropoulos
Florida governor signs legislation prohibiting private employer vaccine mandates
Florida Gov. Ron DeSantis on Thursday signed legislation that prohibits private employer vaccine mandates and says employers that violate the ruling will be fined.
The legislation also states educational institutions can't require students to be vaccinated; school districts can't have face mask policies or quarantine healthy students; and families can "sue violating school districts."
"Nobody should lose their job due to heavy-handed COVID mandates," DeSantis, a Republican, said in a statement.
New York governor calls on workers to go back to the office
New York Gov. Kathy Hochul is calling on workers to head back to the office in the new year.
"How about this New Year's resolution: that in the days after New Year’s, that we say everybody back in the office. You can have a flex time, but we need you back, at least the majority of the week," Hochul told industry leaders at the Association for a Better New York breakfast.
Hochul also said she would be in Times Square on New Year's Eve.
Times Square is reopening this New Year's Eve after being closed last year due to the pandemic. Revelers must bring proof of full vaccination and a photo ID.
"I can't wait to put 2020 - 2021 behind us," the governor said.
-ABC News' Aaron Katersky
FDA expected to authorize Pfizer, Moderna boosters for all adults soon: Source
The Food and Drug Administration is expected to authorize Pfizer's and Moderna's COVID-19 booster doses for all adults as soon as Thursday, a government official with direct knowledge of the process told ABC News.
That would come in time for the Centers for Disease Control and Prevention's advisory panel meeting this Friday to discuss booster recommendations regarding all adults for both manufacturers.
The CDC previously signed off on a third dose of both vaccines for certain populations, as well as a booster of the single-dose Johnson & Johnson vaccine for anyone 18 years and older.
-ABC News' Eric Strauss