Open Access Serologic Prevalence of MPV1 in Mouse Strains in a Commercial Laboratory Mouse Colony Determined by Using VP1 Antigen

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Abstract:

A mouse parvovirus (designated MPV1f) was identified in a commercial laboratory mouse colony in Australia. The infection had not been detected by using an rNS1 parvovirus ELISA antigen even though the virus was genetically similar to other MPV1 variants reported previously. A recombinant biotinylated protein based on a truncated VP1 protein of the MPV1 strain was produced and used as antigen for ELISA and Western immunoblots to detect virus infection and determine the seroprevalence of infection in a colony of approximately 45,000 mice. Antibody-positive mice were detected in 8 of 11 rooms sampled, indicating that infection was widespread in the facility. Antibody was detected in 16.2% of 1161 sera obtained from 20 strains of mice. Seroprevalence varied among mouse strains, suggesting genetic variation in the susceptibility of mice to MPV1 or in their antibody response to infection, as has been reported previously in experimentally infected mice. Seroprevalence was high in some inbred strains, including DBA/2JArc and the random-bred strains Hsd:NIH and Arc:Arc(s). Antibody was not detected inC57BL/6J strains, and BALB/c strains showed low seroprevalence of MPV1f.

Document Type: Research Article

Affiliations: 1: School of Veterinary and Biomedical Sciences, Murdoch University, Australia 2: Animal Resources Centre, Murdoch, Australia 3: School of Veterinary and Biomedical Sciences, Murdoch University, Australia;, Email: gwilcox@murdoch.edu.au

Publication date: July 1, 2010

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  • The Journal of the American Association for Laboratory Animal Science (JAALAS) serves as an official communication vehicle for the American Association for Laboratory Animal Science (AALAS). The journal includes a section of refereed articles and a section of AALAS association news. The mission of the refereed section of the journal is to disseminate high-quality, peer-reviewed information on animal biology, technology, facility operations, management, and compliance as relevant to the AALAS membership. JAALAS accepts research reports (data-based) or scholarly reports (literature-based), with the caveat that all articles, including solicited manuscripts, must include appropriate references and must undergo peer review.

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