US studies highlight the need for COVID boosters to fight Omicron

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A worker from Chicago Family Health Center prepares a booster shot for the coronavirus disease (COVID-19) at a McDonald’s, as the Omicron coronavirus variant spreads through the country, in Chicago, Illinois, U.S., December 21, 2021. — Reuters/FileThird dose of an mRNA vaccine is key to fighting Omicron variant.It provides 90% protection against hospitalisation due to…Continue Reading