Zebra-borne neurotropic equid herpesvirus 1 meningoencephalitis in a Thomson’s gazelle (Eudorcas thomsonii):
2017
We describe the histopathologic, immunohistochemical, and molecular features of a case of meningoencephalitis in a Thomson’s gazelle (Eudorcas thomsonii) naturally infected with zebra-borne equid herpesvirus 1 (EHV-1) and the implications for the molecular detection of zebra-borne EHV-1. A 4-y-old female Thomson’s gazelle was submitted for postmortem examination; no gross abnormalities were noted except for meningeal congestion. Microscopic evaluation demonstrated multifocal nonsuppurative meningoencephalitis with intranuclear eosinophilic and amphophilic inclusion bodies and EHV-9 antigen in neurons. PCR demonstrated the presence of a herpesvirus with a nucleotide sequence 99–100% identical to the corresponding sequences of zebra-borne EHV-1 and of EHV-9 strains. To determine whether EHV-1 or EHV-9 was involved, a PCR with a specific primer set for EHV-9 ORF59/60 was used. The sequence was identical to that of 3 recognized zebra-borne EHV-1 strains and 91% similar to that of EHV-9. This isolate was desig...
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