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Duration of immunity induced by companion animal vaccines

Published online by Cambridge University Press:  29 October 2010

James A. Roth  and
Anna Rovid Spickler
James A. Roth*
Affiliation:
Center for Food Security and Public Health, College of Veterinary Medicine, Iowa State University, Ames, IA, USA
Anna Rovid Spickler
Affiliation:
Center for Food Security and Public Health, College of Veterinary Medicine, Iowa State University, Ames, IA, USA
*
*Corresponding author. E-mail: [email protected]
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Abstract

Concerns about possible adverse effects from annual vaccination have prompted the reanalysis of vaccine protocols for cats and dogs. In the last decade, several veterinary advisory groups have published protocols that recommend extended revaccination intervals for certain ‘core’ vaccines. In addition, practicing veterinarians have been asked to consider vaccination as an individualized medical procedure, based on an analysis of risks and benefits for each vaccine in an individual animal. The calls for extended revaccination intervals prompted considerable debate in USA and internationally. Areas of concern include the amount of evidence to support prolonged immunity from various vaccines, the risk of poor responses in individual animals and the possible effects on population immunity. This review examines how the duration of immunity (DOI) to a vaccine is established in animals and humans. It reviews factors that can affect the DOI in an individual animal, including the types of immune defenses stimulated by the pathogen, and the vaccine, host factors such as age and the level of exposure to the pathogen. In addition, it examines DOI studies that were published for canine and feline core vaccines.

Keywords

vaccinesdogscatsduration of immunityvaccination interval
Type
Review Article
Information
Animal Health Research Reviews , Volume 11 , Issue 2 , December 2010 , pp. 165 - 190
Copyright
Copyright © Cambridge University Press 2010

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