Vaccines help protect people from dangerous diseases by training the immune system to recognize and fight harmful viruses or bacteria. When a vaccine is given, it contains weakened or inactive parts of a pathogen that do not cause illness but stimulate the body to produce antibodies. These antibodies prepare the immune system to quickly respond if exposed to the real disease in the future.
Vaccination has saved millions of lives by preventing illnesses like measles, polio, and influenza. It also helps protect communities through herd immunity, which occurs when enough people are vaccinated to slow or stop the spread of disease. Getting vaccinated is one of the safest and most effective ways to stay healthy and protect others. Shutdown123