Stronger Immunity with Smarter Timing

Every August, National Immunization Awareness Month reminds us of one of the simplest ways to protect our health is to stay up to date on recommended vaccines.

While vaccines are important at every stage of life, they become especially valuable as we get older. With age, our immune systems change, making it harder to fight off infections that younger adults may recover from more easily. Fortunately, vaccines help prepare the body before illness strikes, and have been proven to reduce the risk of severe disease, hospitalization, and complications. For adults over 50, the right vaccines – received at the right time – can help support healthier aging and greater independence.

Understanding immune aging

As we grow older, our immune system goes through the natural process of immunosenescence. While the name is long, the concept is easy: the body’s defenses become a little slower and less efficient over time. When you’re younger, the immune system quickly recognizes new threats and responds with speed and strength. With age, that response can take longer, and it may not be as powerful.

This doesn’t mean older adults cannot fight infections. It simply means illnesses such as influenza, COVID-19, pneumonia, and RSV are more likely to lead to serious complications. Vaccines give the immune system a chance to “practice” recognizing these germs before they cause illness. Even if someone becomes infected, vaccination often helps reduce the severity of disease and lowers the risk of hospitalization.

Currently, older adults account for up to 70% hospitalizations and 85% of deaths from seasonal influenza each year. Similar trends are seen with COVID-19 and respiratory syncytial virus (RSV), making prevention especially important as we age.

Vaccine recommendations for older adults

Vaccine recommendations can vary depending on your age, health conditions, and vaccination history, so it’s always best to discuss your individual needs with your healthcare provider. However, these vaccines are commonly recommended for many adults over age 50.

• Shingles (Shingrix) Shingles is caused by the same virus that causes chickenpox. Even people who had chickenpox decades ago remain at risk because the virus stays dormant in the body.

The CDC recommends two doses of the shingles vaccine for adults age 50 and older. Vaccination greatly reduces the risk of developing shingles and its most common complication, long-lasting nerve pain.

• Influenza (Flu) Influenza viruses change every year, which is why an annual flu vaccine is recommended.

For adults 65 and older, higher-dose or enhanced flu vaccines may provide better protection because they create a stronger immune response.

• COVID-19 COVID-19 continues to circulate, and updated vaccines are designed to better match currently circulating strains. Around 47,000 older adults died from COVID-19 in 2024.

Older adults are at higher risk for severe illness, making it important to stay current with CDC recommendations based on age and health status. For many people 65 and older, that’s two shots per year spaced 6 months apart.

• Pneumococcal disease Pneumococcal bacteria can cause pneumonia, bloodstream infections, and meningitis. Nearly one million adults get pneumococcal pneumonia each year, resulting in up to 400,000 hospitalizations.

Current CDC guidelines recommend pneumococcal vaccination for adults age 50 and older who have not previously received a recommended pneumococcal vaccine, with recommendations varying based on prior vaccination history.

• RSV (Respiratory Syncytial Virus) Although RSV is often thought of as a childhood illness, it can be very serious for older adults. RSV can make it hard to get enough oxygen into the blood; for individuals with heart or lung problems, heavy strain can cause the organs to fail or work much harder.

Vaccination is recommended for many adults age 75 and older and for adults ages 60 to 74 who have certain chronic health conditions or other risk factors. Your healthcare provider can help determine whether RSV vaccination is right for you.

• Tetanus, Diphtheria, and Pertussis (Td or Tdap) This vaccine prevents three life-threatening diseases and protects adults from painful muscle spasms. Diphtheria and Pertussis are highly contagious.

Adults should receive a Td or Tdap booster every 10 years. If you’ve never received a Tdap vaccine as an adult, your provider may recommend that first.

• Hepatitis B Many adults with diabetes, chronic liver disease, kidney disease, or other health conditions may also benefit from hepatitis B vaccination. HBV infection is a major cause of serious liver diseases, including hepatitis, cirrhosis, and liver cancer.

Your healthcare provider can review your health history to figure out whether this vaccine is recommended for you.

Why seasonal planning matters

One of the biggest misconceptions about vaccines is that they’re something to think about only after illnesses begin circulating. Planning ahead helps ensure your body has time to build protection before exposure. Consider:

• Scheduling your annual flu vaccine before influenza season begins in the fall.
• Receiving updated COVID-19 vaccines when recommended for the upcoming respiratory virus season.
• Using annual wellness visits as an opportunity to review your vaccination history.

Keeping a simple vaccination calendar or discussing upcoming vaccines during routine appointments can help you stay protected year-round. If you’re managing a chronic condition such as diabetes, heart disease, or kidney disease, ask whether more vaccines may be appropriate.

Working together for better health

Vaccination is most effective when it’s part of a coordinated approach to overall health. At Four Seasons Healthcare Solutions, pharmacy and home health professionals work together to help individuals stay on track with preventive care.

Pharmacists can review medication records, identify recommended vaccines, answer questions about timing, and help ensure vaccines fit safely within an individual’s treatment plan.

Home health nurses often reinforce those recommendations during visits, provide education about vaccine benefits, watch for any concerns, and encourage clients to discuss recommended immunizations with their primary care provider. For individuals recovering from illness or managing multiple chronic conditions, this extra layer of support can make preventive care feel much more manageable.

Working together, our healthcare team can help ensure that prevention becomes part of everyday wellness, not just something to think about during flu season.

A healthier future

Getting vaccinated isn’t simply about avoiding illness. It’s about protecting your independence, supporting your quality of life, and helping you continue doing the things you enjoy. As our immune systems change with age, planning ahead becomes one of the smartest investments we can make in our long-term health.

Talk with your healthcare provider about which vaccines are right for you, and remember that we are here to be valuable partners in helping you stay healthy all year long.

Seasonal Vaccination Planning Guide