People over 65 can be effectively and safely vaccinated with both the third shot against the coronavirus and the flu, according to a new scientific study.
Researchers from Sanofi Pasteur in France and the United States, who published the study in The Lancet Respiratory Medicine, studied 306 people (already vaccinated with two doses of coronavirus, with at least five months after the second dose had passed), according to Reuters.
Volunteers in 2021 were randomly divided into three groups:
participants in the first group received the flu vaccine Sanofi Fluzone, the second received the Moderna Covid-19 vaccine (booster dose), the participants in the third group received both vaccines (influenza and the third dose of coronavirus) at the same time.
Blood samples were taken from all participants both before and 21 days after vaccination.
It was found that the simultaneous administration of two vaccines does not affect the immune response, because those who received two vaccines together developed the same levels of antibodies as those who received each vaccine separately. There were also no concerns about the safety or severity of side effects.