Taking Painkillers After First COVID Shot Linked to Breakthrough Infections

In the same study, health care workers taking blood pressure medications and people 45 and older were found to be at lower risk of such infections.

A health care worker fills a syringe with Pfizer's COVID-19 vaccine. Robyn Beck/AFP via Getty Images

Using painkillers after the first dose of COVID-19 vaccination boosts the risk of breakthrough infections, according to a recent study.

Breakthrough infections are COVID-19 cases among vaccinated individuals.