A government study of 450 people says that “mixing vaccines may enhance the immune response” to the COVID-19 virus.
There are two types of COVID vaccines that have offered to the public: the Johnson and Johnson shot--a traditional vaccine containing a piece of modified virus, and those made by Pfizer and Moderna--"M-RNA" vaccines, which send a message to immune cells.
"For people who got the J&J vaccine originally, their protection was much greater if they get an MRNA vaccine as their second booster," Professor Kristen Choi of UCLA's Fielding School of Public Health and School of Nursing. "Any of the combinations are going to be safe. You can’t go wrong, in terms of safety," Choi told NBC4.
If you fall in one of those groups, public health experts say you might consider getting that second booster if you're planning to travel this summer, especially through airports and on airplanes, since vaccines seem to prevent infection in some people for about two months.
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