Which immunization is recommended annually for older adults?

The influenza vaccine is recommended annually for older adults due to the higher risk of severe complications associated with influenza in this population. Older adults have a weakened immune response which makes them more susceptible to illnesses, including flu, and increases the likelihood of hospitalization and mortality during flu season. Annual vaccination helps to boost immunity and provides protection against the circulating strains of the virus, which can change from year to year.

While the shingles vaccine and pneumonia vaccine are important for older adults, they are not administered on an annual basis. The shingles vaccine is typically given once for individuals over a certain age, while the pneumonia vaccine may be given based on specific guidelines, usually not annually but rather according to individual risk factors. The COVID-19 vaccine has had varying recommendations for booster doses, but it is also not categorized as an annual immunization like the influenza vaccine. Thus, the annual recommendation specifically pertains to the influenza vaccine due to its prevalent seasonal nature and the need for regular updates in formulation to align with circulating strains.