Dr. Anthony Fauci, the top US infectious disease expert, said on Tuesday that it is too early to know whether the Omicron variant of COVID-19 will lead to severe disease, adding that preliminary information from South Africa indicates it does not result in unusual symptoms.
Fauci said there were 226 confirmed cases of the variant in 20 countries as of Tuesday morning but Omicron had not been detected yet in the United States.
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