MSNBC Jose Diaz-Balart Reports October 22, 2021 14:04:00
Nearest vaccine site or pharmacy and get another johnson & johnson or an mrna vaccine. we know it's safe and effective to get a booster shot. i think we'll get more data over time as to which mix and match will be most effective. >> meanwhile, pfizer announced this morning that according to a study, its kid-sized dose of its covid-19 vaccine is safe, more than symptomatic infections in 5 to 11-year-olds. how promising is this data? >> this is just preliminary data, but it's incredibly important. we knew that the vaccine was safe in young people. it's about a third of the adult dose. and we see...