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Assessing the Potency of Oral Polio Vaccine Kept Outside of the Cold Chain During a National Immunization Campaign in Chad

This article, published in Vaccine, reports on a study of the potency of monovalent oral polio vaccine type 3 kept at ambient temperatures during a polio immunization campaign in Chad. The results of the study show that post-campaign laboratory testing confirmed that the test vials were still potent, and in conformity with the defined release specifications. Further, the Vaccine Vial Monitors performed as expected, giving an early warning indication of when cumulative exposure to heat reached levels that may have negatively affected the vaccine's potency. ABSTRACT ONLY. (Learn how users in developing countries can gain free access to journal articles.)

Author: Zipursky S, Boualam L, Cheikh DO, et al.

Published: 2011

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(Located at www.sciencedirect.com)

Citation: Zipursky S, Boualam L, Cheikh DO, et al. Assessing the Potency of Oral Polio Vaccine Kept Outside of the Cold Chain During a National Immunization Campaign in Chad. Vaccine. 2011;29(34):5652-5656.

Resource types: Peer-reviewed journal

Diseases/vaccines: Polio

Topics: Introduction and service delivery, Disease/vaccine specific information, Cold chain technologies, Presentation and packaging, Vaccine stabilization

Regions: Africa