Eastern Equine Encephalitis Virus in Mexican Wolf Pups at Zoo, Michigan, USA

Abstract

During the 2019 Eastern equine encephalitis virus (EEEV) outbreak in Michigan, two 2-month old Mexican wolf pups experienced neurologic signs, lymphohistiocytic neutrophilic meningoencephalitis with neuronal necrosis and neuronophagia, and acute death. We identified EEEV by reverse transcription real-time PCR and in situ hybridization. Vector mosquitoes were trapped at the zoo.

Keywords

• Eastern equine encephalitis virus
• meningoencephalitis
• viruses
• Michigan
• mosquitoes
• vector-borne infections