A year ago, just two doses of a COVID-19 vaccine ¡ª or even one, in the case of Johnson & Johnson¡¯s formulation ¡ª were thought to offer sufficient protection against the coronavirus.
Now, faced with the extraordinarily contagious omicron variant, Israel has begun offering fourth doses to some high-risk groups. On Wednesday, the Centers for Disease Control and Prevention expanded eligibility for boosters to adolescents and backed away from describing anyone as ¡°fully vaccinated¡± because two shots no longer seem adequate.
Instead, one¡¯s vaccination status will now be ¡°up to date¡± ¡ª or not. It¡¯s no surprise that many Americans are wondering: Where does this end? Are we to roll up our sleeves for booster shots every few months?
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