All students must have a series of three Hepatitis B vaccinations (0, 1, and 6 months), and a post-vaccine surface antibody titer (to demonstrate immunity). The earliest the antibody titer can be ...

MOSCOW, June 29. /TASS/. A third dose of the Sputnik V vaccine is safe, and it may provide a higher antibody titer than the one observed after the first two doses, says Gamaleya Research Institute ...

Three doses of COVID-19 mRNA vaccination induce long-lasting antibody and memory B-cell responses, according to a study of 113 healthcare workers in Catalonia who were followed during three years.