Epidemiologically and clinically, I’ve still not seen really any severe cases among fully vaccinated people who are immunocompetent. The pattern that I’m seeing is still primarily unvaccinated who are making it to the I.C.U. — Dr. Abraar Karan, an infectious diseases fellow at Stanford
Epidemiologically and clinically, I’ve still not seen really any severe cases among fully vaccinated people who are immunocompetent. The pattern that I’m seeing is still primarily unvaccinated who are making it to the I.C.U. — Dr. Abraar Karan, an infectious diseases fellow at Stanford
What to Know About Breakthrough Infections and the Delta Variant
Citing new evidence that vaccinated Americans with so-called breakthrough infections can carry as much coronavirus as unvaccinated people do, the Centers for Disease Control and Prevention last month urged residents of high-transmission areas to wear masks in public indoor spaces, regardless of their vaccination status.

The announcement reversed the agency’s recommendation in May that vaccinated people could forgo masks. The vaccines remain highly effective at preventing severe illness and death, but the highly contagious Delta variant and persistent vaccine refusal have taken the country in an unexpected direction. Infections have spiked to the highest levels in six months.

“If the war hadn’t changed, I wouldn’t have felt the need to take such a widely unpopular action,” Dr. Rochelle Walensky, the C.D.C.’s director, said in an email.

... Breakthrough infections seemed to be vanishingly rare when previous versions of the coronavirus dominated in the United States. But recent outbreaks suggest that the numbers may be higher with the arrival of the Delta variant.

“A modest percentage of people who are fully vaccinated will still get Covid-19 if they are exposed to the virus that causes it,” Dr. Walensky said in the email.


Still, most vaccinated people with a breakthrough infection are likely to have mild symptoms. And they may even benefit, in the long run: Every exposure to the virus is an opportunity for the immune system to strengthen its defenses against variants that may emerge in the future.

... “Epidemiologically and clinically, I’ve still not seen really any severe cases among fully vaccinated people who are immunocompetent,” Dr. Karan said. “The pattern that I’m seeing is still primarily unvaccinated who are making it to the I.C.U.”
Read the full article: https://www.nytimes.com/2021/08/10/health/covid-breakthrough-vaccines.html