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OJVRTM

 Online Journal of Veterinary Research 

 Volume 25 (5): 341-350, 2021.


Epidemiological assessment of vaccine efficacy

 

GV Asokan, A Padmaraj and Johnsi Koruth.

 

Institute of veterinary preventive medicine, Ranipet, Tamil nadu-632 402 India

 

ABSTRACT

 

Asokan GV, Padmaraj A, Koruth J., Epidemiological assessment of vaccine efficacy, Onl J Vet Res., 25 (5): 341-350, 2021. Success of epidemiological programs against infectious diseases depends on effective prophylactic vaccines. Although efficacy and effectiveness are used interchangeably, effectiveness depends upon efficacy. Few methods are in use to assess the efficacy of the vaccine, a randomized double blind controlled trial is the least ambiguous method for evaluation. Observational designs for vaccine efficacy include cohort and case control and are useful when comparing vaccines with very large effectiveness. Modeling helps in designing vaccine. Serologic responses to antigens in combination vaccine differ from those obtained with separate administration of the components. Creation of a vaccine advisory and control authority is imminent.

 

Key words : Epidemiology, Vaccines, efficacy, effectiveness.


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