Is a vaccine a dead virus

Is a vaccine a dead virus

Live, attenuated vaccines fight viruses and bacteria.Other licensed vaccines that use this type of technology:These vaccines contain a version of the living virus or bacteria that has been weakened so that it does not cause serious disease in people with healthy immune systems.The vaccines either contain inactivated virus, meaning the viruses are no longer infectious, or a particle designed to look like a flu virus to your immune system.Sometimes this process can cause symptoms, such as fever.

No, flu vaccines cannot cause flu illness.Usually, when it comes to dead or inactivated vaccines, booster shots are required.Hepatitis a, polio, rabies (all inactivated type) what to know:The latest safety information from cdc on hpv vaccine:Inactivated vaccines are used to protect against:

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