Most Americans have had one or more shots of the flu and Covid vaccines. New this year are the first shots to protect older adults and infants from respiratory syncytial virus, a lesser-known threat whose toll in hospitalizations and deaths may rival that of flu.
Federal health officials are hoping that widespread adoption of these immunizations will head off another “tripledemic” of respiratory illnesses, like the one seen last winter. For people with insurance, all of the vaccines should be available for free.