There's growing anxiety over the highly contagious delta variant in the U.S.
Since the beginning of the month, the U.S. has averaged 10,000 to 40,000 new cases a day, according to. At least 13 million people in the U.S. have received the single Johnson & Johnson dose — but experts say people shouldn't be rushing out to boost their Johnson & Johnson vaccinations with any other shots.
The study looked only at the antibody response in the blood samples, according to the researchers. Other crucial components of the immune response, such as T cells that can protect the body against the virus, weren't examined.Early this month, researchers from South Africa reported on their real world data about health care workers who had received the one-dose vaccine. The research, which has yet to be published, showed that, overall, over 90 percent of breakthrough infections were mild.
In a statement Tuesday, Johnson & Johnson responded that the new research doesn't show"the full nature of immune protection."
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