WHO has said repeatedly that COVID-19 case counts are likely a vast underestimate of the coronavirus’ prevalence. The agency cautioned countries in recent weeks against dropping their comprehensive testing and other surveillance measures, saying that doing so would cripple efforts to accurately track the spread of the virus.
The agency warned that less surveillance would particularly harm efforts to detect new COVID variants and undermine a potential response. British authorities have said that while they expect to see more cases, they have not seen an equivalent rise in hospitalizations and deaths. U.S. officials expanded the use of vaccine boosters Tuesday as regulators said Americans ages 50 and older can get a second booster at least four months after their last vaccination.
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