Canada in ‘better shape’ than predicted in face of XBB.1.5, expert suggests
Still, Jha notes that those over 60 years old are vulnerable and should keep on wearing masks in crowded indoor areas and get a vaccination booster when eligible.New data from the U.S. Centres for Disease Control found that the updated vaccines from Pfizer and Moderna that were geared toward the BA.4 and BA.5 variants are nearly as effective on XBB.1.5. While they were 52 per cent effective against BA.5 infections, they were 48 per cent effective against XBB.1.5 among those 18-49 years old.
XBB.1.5 is still a highly transmissible virus, though, and all it takes is one infection in a crowded room for it to spread, Jha said.Meanwhile, in the U.S., Jha said XBB.1.5 is causing most of its new infections and is leading to more hospitalizations, which he attributes to a lower vaccination rate in the country. The CDC reported Friday that XBB.1.5 accounts for 61.3 per cent of U.S. COVID-19 cases and is likely the dominant variant now.
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