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Comparative study of the immunogenicity in mice and monkeys of an inactivated CA16 vaccine made from a human diploid cell line.


ABSTRACT: The coxsackie A16 virus (CA16), along with enterovirus 71 (EV71), is a primary pathogen that causes hand, foot, and mouth disease (HFMD). To control HFMD, CA16, and EV71 vaccines are needed. In this study, an experimental inactivated CA16 vaccine was prepared using human diploid cells, and the vaccine's immunogenicity was analyzed in mice and rhesus monkeys. The results showed that the neutralizing antibody was developed in a dose-dependent manner, and was sustained for 70 days with an average GMT (geometric mean titer) level of 80 to 90 in immunized mouse and for 56 days with GMT of higher than 300 in monkeys. The neutralizing antibody had a cross-neutralizing activity against different viral strains (genotype A and B), and the specific IFN-?-secreting cell response was activated by these virus strains in an ELISPOT assay. This study provides evidence for the potential use of inactivated CA16 as a candidate for use in vaccines.

SUBMITTER: Yang E 

PROVIDER: S-EPMC4896597 | BioStudies | 2014-01-01T00:00:00Z

REPOSITORIES: biostudies

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