These are differences between Live attenuated vaccine and Killed vaccine
| Live attenuated vaccine |
Killed vaccine |
|
An attenuated vaccine is a vaccine created by reducing the virulence of a pathogen, but still keeping it viable (or "live"). |
An inactivated vaccine (or killed vaccine) is a vaccine consisting of virus particles, bacteria, or other pathogens that have been grown in culture and then lose disease producing capacity |
| Attenuation takes an infectious agent and alters it so that it becomes harmless or less virulent |
In contrast, live vaccines use pathogens that are still alive (but are almost always attenuated |
