Immunisation is always associated with children, but doctors warn that protection from some childhood vaccines can wear off over time.
Adults can also be at risk for vaccine-preventable diseases due to their changing lifestyle and nature of work.
While in countries such as the U.S., senior citizens routinely get annual vaccine shots, the concept is nascent in India, say doctors, who recommend that all adults get vaccinations regardless of age.
Asha Benekappa, head of the department of Paediatrics in Bangalore Medical College and Research Institute (BMCRI), says that similar to children, elders too have a vulnerable immune system.

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