Vaccines

Vaccines are biological preparations designed to protect individuals from harmful diseases by stimulating the immune system. They contain weakened or inactive parts of a pathogen, such as a virus or bacteria, which trigger the body's natural defenses without causing illness. This process helps the immune system recognize and remember the pathogen, enabling it to respond quickly and effectively in the future. Vaccines are a safe and effective way to prevent diseases and have played a crucial role in reducing the spread of illnesses worldwide.