The flu vaccine is updated each year to address the changing strains of the virus, making annual vaccination important for protection. Health experts recommend that people over 65 consider a high-dose version of the vaccine.
The vaccine does not contain live virus and cannot cause the flu. Most recipients do not experience illness after vaccination, though some may feel mild discomfort or muscle aches at the injection site, typically resolving within a day.
Health professionals advise getting vaccinated in early fall, as it takes about 10 to 14 days for immunity to develop. Vaccination in September or October is recommended because this timing allows for adequate antibody response before flu season peaks.
While no vaccine guarantees complete immunity, public health agencies like the Centers for Disease Control collaborate months in advance to formulate each year’s vaccine based on anticipated strains. Even if there is not a perfect match between circulating viruses and the vaccine, studies indicate that immunization still provides significant protection by reducing severity and duration of illness and lowering transmission risk.
Experts caution against relying solely on natural infection for immunity since contracting influenza can lead to severe complications, especially in older adults. Additionally, unvaccinated individuals risk spreading the virus to others. Vaccination remains the most effective way to protect oneself and those around them from seasonal flu.
“Getting a flu vaccine each year is your best chance for preventing the flu and reducing the severity of illness if you get sick. Remember, if you’re over 65 years of age, a high-dose vaccine is likely appropriate for you.”
“The flu vaccine doesn’t give you the flu because it does not contain a live virus. Most people don’t experience any illness. If you feel off, it means your immune system is responding to the vaccine. That feeling usually goes away within 24 hours. A small percentage of people may experience a sore shoulder or mild muscle aches near where they received their vaccination.”
“It’s important to get your flu vaccination in early fall because that’s when flu season starts. It takes 10 to 14 days for antibodies to develop and protect you, so it’s best to get vaccinated in September or October.”
“If you get vaccinated in January, when flu season peaks, and you come into contact right away with someone who has influenza, your body doesn’t have enough time to mount a sufficient response.”
“Scientists and public health officials at the Centers for Disease Control and organizations around the country work months ahead of each flu season to predict what needs to go into a flu vaccine. Even though the match may not be perfect, data show a vaccine still stimulates antibodies to protect you. While you may still get the flu, chances are it will be milder, less likely to pass it on to other people, and you will recover faster.”
“Your body will make antibodies against the seasonal flu if you get it, but you may also be the rare person who gets a very severe case of the flu. There’s no chance you’ll get severe flu from a vaccine. That’s especially important to consider as we get older.”
“It’s also important to remember that if you contract the flu, you could pass it on to your friends, family, or coworkers. Getting vaccinated is the best way to protect you and the people around you.”
