真的假的

和 FDA， 四月18日 65歲以上，打過一針雙價疫苗 四個月後，可以再打一針雙價疫苗 免疫功能不足者，打過一針雙價疫苗兩個月後，可以再打一針雙價疫苗 6 個月大以上，都可以打 含BA.4/5 的雙價疫苗。 美國不再使用單價疫苗 Children 6 months through 5 years of age who are unvaccinated may receive a two-dose series of the Moderna bivalent vaccine (6 months through 5 years of age) OR a three-dose series of the Pfizer-BioNTech bivalent vaccine (6 months through 4 years of age). Children who are 5 years of age may receive two doses of the Moderna bivalent vaccine or a single dose of the Pfizer-BioNTech bivalent vaccine. Children 6 months through 5 years of age who have received one, two or three doses of a monovalent COVID-19 vaccine may receive a bivalent vaccine, but the number of doses that they receive will depend on the vaccine and their vaccination history. https://www.fda.gov/news-events/press-announcements/coronavirus-covid-19-update-fda-authorizes-changes-simplify-use-bivalent-mrna-covid-19-vaccines 此篇相同回報者之文章列表