Experts Say Those Already Vaccinated Should Still Wear Mask

Dr. Jeff Path, an emergency medicine physician, continues to wear a mask despite being fully vaccinated against COVID-19. He emphasizes the importance of protecting patients and highlights that while vaccines like Pfizer and Moderna are effective in preventing severe illness, they may not prevent transmission. The CDC advises continued mask usage until more is known about transmission post-vaccination. There are uncertainties about the duration of immunity and the impact of new variants. Vaccination is progressing slowly, and masks are recommended until herd immunity is achieved.

What concerns are raised about new COVID-19 variants in relation to vaccine effectiveness?

Why is it recommended for everyone to still wear a mask even after vaccination?