Does the adult flu vaccine work?

Adult influenza vaccines may cause side effects, but they are usually mild and short-lived. Common side effects include pain, redness, swelling, low fever, fatigue, etc. at the injection site. Severe side effects are extremely rare. Vaccination is an effective means of preventing influenza, and it is recommended that high-risk groups be vaccinated every year.

1. Common side effects of influenza vaccines

Most side effects of the flu vaccine are mild reactions that usually disappear on their own within 1-2 days after vaccination. Pain, redness, swelling or nodules may occur at the injection site, which is a normal response of the immune system to the vaccine. Some people may experience low fever, headache, fatigue or muscle aches, which usually do not require special treatment and can be relieved by getting more rest and drinking more water.

2. Potential for serious side effects

Serious side effects are extremely rare, occurring in about one in a million people. They may include allergic reactions such as hives, breathing difficulties, or nervous system reactions such as Guillain-Barré syndrome. If you experience severe discomfort after vaccination, such as persistent high fever, breathing difficulties, or confusion, you should seek medical attention immediately. Before vaccination, you should inform your doctor of your health status and allergy history to reduce risks.

3. How to reduce the occurrence of side effects

Make sure you are in good health before vaccination, and avoid vaccination during a cold or fever. After vaccination, rest more, avoid strenuous exercise, and keep the injection site clean and dry. If you are worried about side effects, you can choose to get an inactivated vaccine, which has a lower incidence of side effects. For people with a history of egg allergies, you can choose a vaccine without egg ingredients.

4. Long-term benefits of flu vaccines

Flu vaccination not only reduces the risk of infection, but also reduces the occurrence of complications such as pneumonia and myocarditis. Vaccination is particularly important for high-risk groups such as the elderly, patients with chronic diseases and pregnant women. Studies have shown that vaccination can significantly reduce hospitalization and mortality rates and is a cost-effective preventive measure.

The side effects of adult influenza vaccines are mostly mild and short-lived, and serious side effects are extremely rare. Vaccination is an effective means of preventing influenza, especially for high-risk groups. You should understand your health status before vaccination, pay attention to your body's reactions after vaccination, and seek medical attention in time if necessary. Through scientific vaccination, you can effectively reduce the risk of influenza and its complications and protect personal and public health.