COVID-19 vaccine updates targeting newest omicron strains authorized by FDA
The new U.S. boosters are combination, or "bivalent," shots. They contain half the original vaccine recipe and half protection against the newest omicron versions, called BA.4 and BA.5, that are considered the most contagious yet. The hope is that the modified boosters will blunt yet another winter surge.
The new U.S. boosters are combination, or "bivalent," shots. They contain half the original vaccine recipe and half protection against the newest omicron versions, called BA.4 and BA.5, that are considered the most contagious yet. The hope is that the modified boosters will blunt yet another winter surge. + Read more
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