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Health officials have been bracing to discover more infections since the first reported U.S. case was announced Wednesday.
“This is not a cause for major alarm,” New York Gov. Kathy Hochul (D) said at a news conference, urging people to wear masks, get vaccinated and get booster shots.
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White House press secretary Jen Psaki said Thursday that “nothing is off the table” when it comes to controlling the virus’s spread.
Many vaccination and booster shot combinations appear likely to protect against covid-19, but Pfizer’s and Moderna’s shots may work best, according to a new study.
People will be required to wear masks on airplanes, trains, buses and other transportation through March 18, according to senior Biden administration officials.
All international travelers must take a coronavirus test one day before their flight to the United States, starting Dec. 6.
Anthony S. Fauci, the United States’ top infectious-disease expert, said the Biden administration is preparing for a possible “variant-specific boost” of vaccinations.
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