UTMB study: Unvaccinated, natural immunity offers little protection against omicron
KTRK-TV, December 22, 2021
Unvaccinated individuals who were previously infected with COVID may not have as much natural immunity against the virus, especially when it comes to the new omicron variant. “I've never seen anything like this,” UTMB biochemistry professor Dr. Pei-Yong Shi said. Shi shared data from his research, showing how the level of natural immunity of unvaccinated individuals is nowhere near what it was in the past. In fact, it's about 16-fold lower than previous variants a month after the infection. The number drops even further if the infection was six months ago. Other ABC outlets also ran this story.