What is the purpose of vaccination?

The purpose of vaccination is to stimulate the immune system to protect against diseases. Vaccines introduce a harmless component of a pathogen (like a protein or a weakened form of the virus) into the body, prompting the immune system to recognize and remember the pathogen. This primes the immune system so that if the individual is later exposed to the actual disease, their immune system can respond more rapidly and effectively, preventing illness or reducing the severity of the disease.

Vaccines do not cure diseases; instead, they prevent them by preparing the body for potential future encounters with harmful pathogens. Additionally, while vaccinations do not provide immediate energy or promote muscle growth, they play a crucial role in maintaining public health by increasing herd immunity and reducing the spread of infectious diseases.