WHO urges travelers to wear masks
Passengers should be advised to wear masks in high-risk settings such as long-haul flights
Countries should consider recommending that passengers wear masks on long-haul flights, given the rapid spread of the latest Omicron subvariant of COVID-19 in the United States.
Key takeaways
- XBB.1.5 - the most transmissible Omicron subvariant detected so far - accounted for 27.6% of COVID-19 cases in the United States for the week ended Jan. 7;
- In Europe, the XBB.1.5 subvariant was detected in small but growing numbers;
- XBB.1.5 is another descendant of Omicron, the most contagious and now globally dominant variant of the virus that causes COVID-19.
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