In most cases, the provider didn't think the vaccine was indicated for the traveler's itinerary.
Vaccine efficacy against illnesses caused by the H1N1 strain varied significantly by age.
Vaccine effectiveness was similar across disease severity levels.
About half of the claims were related to COVID vaccine, but the vast majority of money paid for claims—$6.5 million—was for harms tied to the H1N1 flu vaccine.
Many participants believe that pharmaceutical firms and public health officials minimized the vaccines' side effects.
In its annual National Influenza Vaccination Week messaging the CDC said there's still time to benefit from getting a flu shot this season.
The risk of infecting household contacts was 19%, the research suggests.
By November 9, 35% of adults reported having received the flu vaccine and 18% the updated COVID-19 vaccine, and 40% of those aged 75 years and older had ever received an RSV vaccine.
With flu and COVID levels still low but expected to rise, the CDC said vaccination is a good way to cut risk over the holiday season.
The greatest vaccination increase was seen in heart attack survivors who didn't get vaccinated the year before.
