03/08/2026
Why Do Adults Need Vaccines? It's Not Just for Children.
When most people hear the word vaccine, they immediately think of babies and young children.
But here's an important fact: vaccines are not just for children. Adults need them too.
As we grow older, our bodies change. The protection we gained from some childhood vaccines can decrease over time, and our risk of certain infections increases with age. This is why staying up to date with recommended vaccines is an important part of maintaining good health throughout adulthood.
Why do adults still need vaccines?
1. Immunity can decrease over time
Some vaccines provide lifelong protection, while others do not. For certain diseases, the immunity developed after childhood vaccination gradually weakens. Booster doses help strengthen your immune system and restore protection.
2. Some diseases are more serious in adults
Adults are not immune to infectious diseases. In fact, illnesses such as influenza, shingles, pneumococcal disease, and COVID-19 can cause severe complications, particularly in older adults and those with chronic medical conditions.
Vaccination reduces the risk of severe illness, hospitalization, and death.
3. Adults can spread infections to others
Even if an adult experiences only mild symptoms, they can still pass certain infections to people who are more vulnerable, including newborn babies, older adults, pregnant women, and individuals with weakened immune systems.
Getting vaccinated is not only about protecting yourself. It also helps protect the people around you.
4. Certain jobs increase the risk of exposure
Healthcare workers, teachers, childcare providers, and people who interact with large numbers of individuals may have a greater chance of being exposed to infectious diseases.
Keeping vaccinations up to date helps reduce this risk.
5. Travel may require additional vaccines
If you plan to travel internationally, you may need vaccines that are not routinely given in your home country. Some countries even require proof of vaccination before entry.
Receiving recommended travel vaccines helps protect both you and the communities you visit.
Which vaccines might adults need?
The vaccines recommended for adults vary depending on factors such as age, medical conditions, occupation, pregnancy status, lifestyle, and travel plans.
These may include vaccines that protect against:
- Influenza (flu)
- COVID-19
- Teta**s, diphtheria, and pertussis
- Shingles
- Pneumococcal disease
- Hepatitis A and B
- Human papillomavirus (HPV) for eligible adults
- Other vaccines based on individual risk factors
The best way to know which vaccines are right for you is to speak with a qualified healthcare professional.
Vaccination is part of healthy aging
Many adults focus on eating well, exercising regularly, and managing stress to stay healthy.
Vaccination deserves to be part of that conversation too.
Preventing disease is often easier, safer, and less costly than treating it after it occurs.
The bottom line
Vaccines are a lifelong investment in your health, not something you outgrow after childhood.
Staying up to date with recommended vaccinations helps protect you from preventable diseases, reduces the risk of serious complications, and contributes to healthier families and communities.
If you cannot remember the last time you reviewed your vaccination history, this may be the right time to have that conversation with your healthcare provider.
Prevention remains one of the most powerful tools in medicine, and vaccination is one of its greatest success stories.