assessing vaccine efficacy

What Factors Influence Vaccine Efficacy?

Numerous factors can influence the observed efficacy of a vaccine:
- Population Characteristics: Age, genetic background, and pre-existing health conditions can affect the immune response.
- Pathogen Variability: Variations and mutations in the pathogen can alter vaccine effectiveness.
- Environmental Factors: Factors like climate and population density can impact disease transmission and vaccine efficacy.
- Vaccine Administration: The route and schedule of vaccine administration can also play a role.

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