The Centers for Disease Control and Prevention (CDC) recommended wearing masks indoors for vaccinated people in places with substantial or high community transmission earlier this week, and Dr. Anthony Fauci told WTOP that if an overwhelming proportion of the population gets vaccinated, this could all be over. The CDC amended guideline, according to infectious disease expert Dr. Monica Gandhi of the University of California San Francisco, feels like a step back, but she believes the delta variety is different.
Fauci said, “We have about 100 million people in this country who are eligible to be vaccinated who are not getting vaccinated.” The unvaccinated are disproportionately affected by the outbreak, although the impacts are not limited to them. Those who do not receive the full benefit of the vaccine may become infected because the vaccine is only about 90% efficient, which implies that some people will not be protected.
The more virus there is, the more likely outbreaks will continue, and Fauci highlighted the importance of more people becoming vaccinated. If there is a lot of the virus circulating, Gandhi said, even vaccinated people can develop a moderate breakthrough infection, which is when a completely vaccinated person is infected with the coronavirus.