Recombinant vaccines and inactivated vaccines typically require several shots to be effective.

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Recombinant vaccines and inactivated vaccines typically require several shots to ensure effective immunity. This is because the body needs time to mount a strong immune response and develop memory cells that can recognize and fight off the pathogen in the future. The number of shots required may vary depending on the type of vaccine, the individual's immune system, and the pathogen being targeted.

Recombinant Vaccines and Inactivated Vaccines Typically Require Several Shots to Be