
live attenuated vaccine
A live attenuated vaccine contains a weakened form of a virus or bacterium that causes a disease. This weakened pathogen is still able to stimulate the immune system without causing the disease itself. By exposing the body to this safe version, the immune system learns to recognize and fight the real pathogen if encountered in the future. These vaccines are effective in generating a strong and lasting immune response, making them valuable for preventing diseases like measles, mumps, and rubella. Overall, they help protect individuals and communities from outbreaks.