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About 48 percent of Americans who received their primary vaccinations have never received that all-important first booster.
Temporary menstrual changes may be more of a side effect of the COVID-19 vaccine than previously understood, new research finds.
The panel voted 19-2 that COVID-19 boosters should contain some version of the super-contagious omicron variant.
The company behind a COVID-19 vaccine has sent tens of millions of doses to wealthy nations but provided none yet…