Booster shot of J&J vaccine raises antibody levels, company says

Thailand develops robotic system to squeeze out more vaccine doses. As Thailand struggles with its worst coronavirus outbreak yet, researchers in the country have developed a machine to draw out COVID-19 vaccine doses more efficiently and optimise lower-than-expected supplies.

Covid-19 news: Vaccine protection wanes within six months, study hints

Second Dose of J. & J. Vaccine Gives Strong Boost, Company Reports