An airport-based COVID-19 surveillance program detected the first known U.S. case of the highly transmissible omicron BA.2 subvariant in December, a new study found.
An airport-based COVID-19 surveillance program detected the first known U.S. case of the highly transmissible omicron BA.2 subvariant in December, according to a new study that was funded by the Centers for Disease Control and Prevention.
The results suggest that pooled testing of international travelers may be an effective way to monitor new variants of the virus, the New York Times reported. But cases are again rising in 11 states, as well as American Samoa and Puerto Rico. Cases are up 44% in New York, up 35% in Kentucky from two weeks ago, up 23% in Arkansas, up 21% in Colorado, up 18% in Connecticut, up 17% in Texas, up 15% in Massachusetts, up 11% in Rhode Island, up 5% in Washington, D.C., and up 1% in Illinois.
Booster shots have become more popular than primary shots but are still way below levels seen in many Western European countries, even as those have suffered rising cases in recent weeks. • Australia and El Salvador have become the latest countries to approve a fourth vaccine shot, or booster dose, the New York Times reported. El Salvador’s president, Nayib Bukele, announced on Facebook last week that boosters would be offered to everyone above the age of 12. Australia will offer boosters to vulnerable people starting in April.
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