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Non Susceptibility of Neonatal and Adult Rats against the Middle East Respiratory Syndrome Coronavirus



Non Susceptibility of Neonatal and Adult Rats against the Middle East Respiratory Syndrome Coronavirus



Japanese Journal of Infectious Diseases 69(6): 510-516



The present study examined the susceptibility of rats to the Middle East respiratory syndrome coronavirus (MERS-CoV) and determined whether this animal is a suitable model for MERS-CoV infection. Immunohistochemical analysis identified dipeptidyl peptidase 4 (DPP4), a known receptor for MERS-CoV on type I pneumocytes from infected rats. Whereas adult rats developed antibodies against MERS-CoV spike protein after intranasal inoculation, there was no evidence of viral replication in the lungs of adult, young, or neonatal rats after intranasal inoculation with MERS-CoV. In addition, human DPP4-expressing rat kidney fibroblasts, but not rat DPP4-expressing cells, were susceptible to MERS-CoV. Taken together, these results suggest that the rat is not a useful animal model for studying MERS-CoV infection.

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Accession: 058413288

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PMID: 27000459


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