For those 65 and over, the Food and Drug Administration has approved high-dose flu vaccines. These vaccines contain four times as much immune-stimulating antigen than the standard-dose vaccine.

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“We had a good response for that last year,” DeBrycker said. The clinics are not, however, supplying the high-dose flu shot designed for people ages 65 and older. DeBrycker said when ACMC ...

The vaccine induced VP1-specific IgA mucosal-homing antibody-secreting B cells and this response was independent of age. The high-dose vaccine induced mucosal-homing T cells, which may contribute ...

If you’re 65 or older, or if you’re younger than 65 but have had an organ transplant, ask your doctor about the Fluzone high-dose vaccine, which provides additional protection against the flu.