booster shots

Booster shots are additional doses of a vaccine given after the initial vaccination series. Their purpose is to "remind" the immune system how to fight the specific disease, helping to maintain or restore immunity as it can weaken over time. By boosting the immune response, these shots help protect individuals from illness, especially as new variants emerge or immunity declines. Essentially, booster shots reinforce the body's defenses, ensuring continued protection against certain infections like COVID-19, tetanus, or others. They're an important tool in maintaining long-term health and preventing outbreaks.