Who qualifies for a coronavirus booster shot? Why it’s still unclear.
While people with immune-compromising conditions rejoice over the FDA decision, may questions remain unanswered.
“Finally!” exclaimed Margaret Collins, a 43-year-old geologist from Fort Worth, Texas, in response to the news that the U.S. Food and Drug Administration has authorized the use of booster vaccine doses for some people with weakened immune systems.
The Pfizer-BioNTech and Moderna COVID-19 vaccines normally require two doses to elicit full immunity. But this week the FDA updated its authorization for both shots based on mounting evidence that a third dose could significantly increase protection for certain immunocompromised people, who have been showing a decreased response to these vaccines.
Collins had received both doses of the Moderna vaccine but recently learned that she has virtually no antibodies against the SARS-CoV-2 virus. She tried to get a third dose
