6 Vaccines Indian Adults Need That Most People Wrongly Assume Are Only for Children

The primary tetanus series you received as a child protects you for roughly ten years. After that, the immunity drops below protective levels. A 2019 study published in the Indian Journal of Medical Research found that tetanus cases in India disproportionately affect adults over 30, not unvaccinated children, because the adult booster is almost never administered in routine care. The Td (tetanus-diphtheria) booster takes one shot, costs under ₹100 at most government hospitals, and covers you for another decade. If you have had a deep wound, a burn, or any contact with soil or animal waste in the last ten years and cannot recall a booster, you are likely unprotected.
Hepatitis B is transmitted through blood, unsterilised needles, and sexual contact, none of which stop at age 18. The World Health Organization estimates that India carries roughly 40 million chronic hepatitis B infections, one of the highest burdens globally. Many adults received only one or two doses of the three-dose series in childhood, which is insufficient for lasting immunity. A blood test called an anti-HBs titre can tell you whether your protection is still active. If it is below 10 mIU/mL, a booster or a fresh three-dose series is recommended. Hepatitis B can lead to cirrhosis and liver cancer over decades. The vaccine is the only reliable prevention.
Pneumococcal disease, the bacterial infection responsible for most community-acquired pneumonia, kills an estimated 100,000 adults in India each year, according to data cited by the Indian Academy of Pediatrics in its adult immunization guidelines. The vaccine is typically recommended for adults over 65, but Indian guidelines now extend the recommendation to anyone over 50, anyone with diabetes, chronic lung disease, or a compromised immune system. There are two formulations: PCV13 and PPSV23. Your doctor will advise on sequence, but the window of highest benefit is before a serious infection, not during recovery from one.
India records millions of influenza cases every year, with peak seasons in the post-monsoon months and again in winter. Unlike most vaccines on this list, the flu shot requires annual administration because the influenza virus mutates enough each year that last season's vaccine offers limited protection against new circulating strains. A 2022 analysis in The Lancet Infectious Diseases estimated that influenza-associated respiratory deaths in Southeast Asia, including India, are heavily concentrated in adults over 50 and those with pre-existing conditions. The vaccine is available at most private clinics and increasingly at urban government hospitals. It does not prevent every flu strain, but it substantially reduces the risk of hospitalisation.

The human papillomavirus vaccine is approved in India for women up to age 45 and men up to age 26. Cervical cancer is the second most common cancer among Indian women, and HPV is responsible for more than 95 percent of cases. The vaccine, Gardasil 9 or Cervarix, both available in India, protects against the strains most likely to cause cancer. Adults who were not vaccinated in adolescence can still benefit significantly, particularly those who have not been exposed to all strains the vaccine covers. The conversation around HPV vaccination has centred almost entirely on adolescent girls, which has left a large cohort of adult women without protection they are eligible to receive.
Adults who never contracted chickenpox as children are susceptible to primary varicella infection, which is considerably more severe in adults than in children. Pneumonia and encephalitis are documented adult complications. A 2020 serological survey published in the Indian Journal of Medical Microbiology found that approximately 15 to 20 percent of Indian adults in urban areas lacked detectable varicella antibodies, a proportion higher than previously assumed. Two doses of the varicella vaccine, administered four to eight weeks apart, provide over 90 percent protection. Adults who did have chickenpox are not candidates for this vaccine but should discuss the shingles vaccine (Zoster) with their doctor once they cross 50, since the same virus that caused chickenpox can reactivate as shingles decades later.

The pattern across all six of these vaccines is the same: protection was initiated in childhood, assumed to be permanent, and never revisited. Indian adults carry the double burden of incomplete childhood series and elapsed booster windows, with no systematic recall mechanism to flag the gap. A single appointment with a general physician to review your immunization record, or to establish one if it no longer exists, is the only step between where most adults currently stand and where their protection should be.