Vaccines are often associated with childhood, but immunizations remain just as important—if not more—for adults. As we age, our immune systems naturally weaken, making us more vulnerable to serious diseases that are otherwise preventable. Whether it’s avoiding missed workdays, hospital bills, or the spread of illness to loved ones, vaccines play a crucial role in preventing disease, reducing healthcare costs, and promoting community health.
According to Dr. Joseph Parise, of Bayhealth Primary Care in Dover, “Vaccinations in general are beneficial and effective in preventing serious illness, hospital stays, and even death.” He especially emphasizes four vaccines every adult—particularly seniors—should prioritize for optimal health and protection.

Why Adult Immunizations Matter More Than You Think
Protecting Yourself and Others
Vaccines don’t just protect the individual—they also reduce the spread of disease to others. This community-wide protection, known as herd immunity, is especially important for protecting infants, seniors, and immunocompromised individuals who cannot receive certain vaccines.
Preventing Long-Term Complications
Contracting a disease like shingles, pneumonia, or even the flu can lead to serious long-term consequences, especially for older adults or those with chronic health conditions. Vaccinations help reduce that risk dramatically.
Key Vaccines Recommended for Adults
Dr. Parise outlines four essential vaccines for older adults that can significantly reduce disease risk and complications:
Shingles Vaccine (Herpes Zoster)
-
Recommended for: Adults aged 50 and older
-
Dosage: Two doses, administered 2–6 months apart
-
Frequency: Once in a lifetime
Shingles is caused by the varicella-zoster virus, the same virus responsible for chickenpox. If you’ve ever had chickenpox, this virus lies dormant in your body and can reactivate later in life as shingles.
Why it matters:
Shingles can cause a painful rash, burning, and nerve damage. Some individuals develop postherpetic neuralgia, a condition causing long-term nerve pain even after the rash subsides.
Influenza Vaccine (Flu Shot)
-
Recommended for: Everyone aged 6 months and older
-
Dosage: One dose annually
-
Best time to get it: Each fall before flu season peaks
The flu is far from harmless—it leads to thousands of hospitalizations and deaths in the U.S. each year, particularly among the elderly, children, and those with chronic illnesses.
Why it matters:
The influenza virus mutates frequently, which is why it’s vital to get the flu shot every year. It helps reduce the severity of symptoms and risk of complications like pneumonia and heart attacks.
Pneumococcal Vaccine
-
Recommended for: Adults aged 65 and older
-
Dosage: Two doses, one year apart
-
First dose: PCV13 (protects against 13 strains)
-
Second dose: PPSV23 (protects against 23 strains)
-
Pneumococcal disease is the leading cause of pneumonia in older adults. It can also cause meningitis and bloodstream infections.
Why it matters:
Hospitalization rates are high among seniors with pneumococcal disease. The vaccine significantly reduces severe illness and mortality.
Tdap Vaccine (Tetanus, Diphtheria, and Pertussis)
-
Recommended for:
-
Adults who never received it as a child
-
Booster every 10 years
-
Pertussis, also known as whooping cough, has made a resurgence in areas like Kent County, Delaware. It’s highly contagious and dangerous—especially to infants.
Why it matters:
This vaccine protects you and the children around you. Adults who are around babies or work in schools should make sure they’re up to date.
Special Considerations for Adults with Chronic Illness
Individuals with chronic conditions such as diabetes, heart disease, kidney disease, or autoimmune disorders may require modified vaccine schedules. These individuals are often at higher risk for complications and should speak with their primary care provider to determine which immunizations are necessary.
Consult Your Healthcare Provider
While the above recommendations apply to many adults, personal health factors may affect which vaccines you need and when. Always consult your doctor to discuss:
-
Your vaccination history
-
Your chronic health conditions
-
Your travel plans (some vaccines are travel-specific)
-
Your age and lifestyle
Dr. Parise advises making immunizations part of your annual health checkup to stay protected year-round.
Frequently Asked Questions:
Q1: Why are vaccines still necessary for adults?
A: Immunity from childhood vaccines can wane over time. Plus, some diseases become more dangerous as we age. Adult vaccines offer renewed protection.
Q2: What vaccines should adults over 50 get?
A: Common recommendations include shingles, flu, pneumococcal, and Tdap vaccines. Your doctor may suggest additional vaccines based on your health.
Q3: How do I know if I need a Tdap booster?
A: If it’s been more than 10 years since your last tetanus shot or you never received the Tdap version, you should get a booster. It also protects against whooping cough.
Q4: Can I get multiple vaccines at once?
A: Yes. Many adult vaccines can be administered together. Your healthcare provider can help space them out if needed for comfort or effectiveness.
Q5: Are adult vaccines covered by insurance?
A: Most adult vaccines are covered under Medicare, Medicaid, and private insurance plans. Check with your provider for exact coverage.