Mixing COVID-19 vaccines for boosters safe, effective, study finds – UPI.com

Mixing COVID-19 vaccines for booster doses is safe and effective, according to the results of a National Institutes of Health-led study released Wednesday.

This means receiving a booster dose of a vaccine that’s different from the shot type given initially provides enough immunity to protect against the virus and that any serious side effects remain rare, the researchers said.

However, the Moderna and Pfizer-BioNTech vaccines generate a stronger immune system response than Johnson & Johnson, even after two doses of the latter, the data showed.

People who received the Johnson & Johnson vaccine had higher antibody levels after receiving a booster shot made by Moderna or Pfizer-BioNTech compared with those given a booster from Johnson & Johnson, according to the researchers.

Source: Mixing COVID-19 vaccines for boosters safe, effective, study finds – UPI.com