When Is the Best Time to Get Flu and Pneumococcal Vaccines?
Following CDC/ACIP guidance, the flu vaccine is best given every September or October, since flu season in the US typically peaks between December and February and it takes about two weeks to build full immunity. The pneumococcal vaccine is not an annual shot — it is recommended once (or with a booster, depending on vaccine type) for higher-risk groups, namely adults 65 and older or adults 19-64 with certain chronic conditions or immunocompromising conditions. Enter your age and chronic condition status above to see recommended timing for both vaccines.
Why It Matters More If You Are 65+ or Have a Chronic Condition
Older adults and people with chronic conditions like diabetes, heart disease, or chronic lung disease face a much higher risk of serious complications from flu or pneumonia than healthy adults. That is exactly why ACIP recommends both the flu and pneumococcal vaccines for everyone 65 and older, and why adults 19-64 with qualifying chronic conditions are also included in the pneumococcal vaccine recommendation. If you fall into the 19-64 age range with a chronic condition, it is worth confirming your specific eligibility and vaccine type with your doctor.
Can You Get Both Vaccines on the Same Day?
Getting the flu shot and the pneumococcal vaccine on the same day, in different arms, is generally considered safe and is a common way to reduce the number of office visits needed. That said, it is best to postpone vaccination if you currently have a fever or acute illness and wait until you have recovered. If you are pregnant or immunocompromised, check with your doctor first about which vaccines and timing are appropriate for your situation.
Frequently Asked Questions
Flu viruses mutate frequently, and vaccine protection gradually wanes over about 6 months, so the CDC recommends getting a new shot each fall before flu season peaks in winter.
It depends on the vaccine type. PPSV23 protection is generally considered to last about 5 years, so people at high risk may need a booster after discussing it with their doctor.