FDA approves mixing COVID-19 vaccines for boosters

Dr. Peter Hotez, with Baylor College of Medicine, tells FOX 26, a third dose is needed for those who received the Pfizer and Moderna vaccine, and recommends sticking with the same vaccine.

Pfizer to vaccinate entire city in Brazil for COVID-19 study

Pfizer researchers want to study the impact of the COVID-19 vaccine in preventing symptomatic cases, reinfections, hospitalizations, deaths, and long-term COVID-19 — so they’re vaccinating the population of an entire city.