Eswaran SP, Praharaj AK, Chander Y, Nagendra A. Potency Titration of Oral Polio Vaccine by Estimation of Live Virus Content Using Tissue Culture Technique.
Med J Armed Forces India 2011;
59:105-7. [PMID:
27407478 DOI:
10.1016/s0377-1237(03)80049-7]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Representative vaccines from 34 different batches of oral log10 (6.425) and a minimum titre of polio vaccine (OPV) were tested for potency by tissue culture technique. All 34 samples were found to be potent, a maximum titre of log10 (6.425) and a minimum titre of log10 (5.86) was obtained. In addition, 6 vaccines from the immunisation clinic (left over sample after immunisation) were also subjected to potency titration and their potency was found to be within normal limits. Adequate potency confirmed ideal storage condition of the vaccines in Armed Forces set up.
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