What is the required booster schedule for the Influenza Vaccine (Intranasal)?

The Influenza Vaccine, particularly the intranasal version, necessitates an annual booster due to the continually changing nature of influenza viruses. Each year, different strains may circulate, and the vaccine is updated to provide the best protection against the most prevalent strains anticipated for that flu season. This annual administration ensures that individuals remain adequately protected and can help prevent the spread of influenza within communities.

While some vaccines are given at extended intervals, such as every 5 or 10 years, the influenza vaccine is not one of them. There are no boosters necessary after a specific time like other immunizations might require, nor is there an option for skipping vaccination altogether. Therefore, the recommendation for an annual booster is crucial in order to maintain immunity against this virus, highlighting the importance of receiving the flu vaccine each year, especially in population segments at higher risk.