An inactivated vaccine stimulates the immune system to defend the body from infection by using a killed virus or bacteria. The bacteria or virus can't replicate or cause disease because it's dead. Though inactivated vaccines have the same purposes as live vaccines-namely, to produce antibodies that battle or organize the immune system's defenses-they appear to evoke a weaker response, necessitating several doses and/or booster shots to achieve the same degree of immunity.
Pragati Sharma
Journal of Preventive Medicine received 226 citations as per google scholar report