For the first time ever, vaccines for Covid, the flu and respiratory syncytial virus are available in the U.S.Public health officials are urging eligible Americans to take all three shots so the nation can avoid another "tripledemic" of Covid, flu and RSV, which inundated hospitals last fall and winter. Most people only need to consider whether they should get an updated Pfizer or Moderna Covid shot and a flu vaccine at the same time, since both are broadly available to all Americans. A maternal vaccine from Pfizer protects infants against RSV, but that shot isn't available just yet. Health experts told CNBC that they don't expect any issues with taking all three shots at once. Still, other experts note that there is little research on administering an RSV shot with another vaccine, or on giving all three shots together.

---

Persons: Dr, Ali Alhassani, Andrew Pekosz Organizations: Public, Pfizer, Moderna, GSK, CNBC, Boston Children's Hospital, Johns Hopkins Bloomberg School of Public Health Locations: U.S, Boston