Adenovirus screening in Myotis velifer from Texas



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Viruses in the family Adenoviridae are nonenveloped, double-stranded DNA viruses that infect a variety of hosts, including reptiles, birds, fish, and mammals. Viruses in the genus Mastadenovirus may cause respiratory, ocular, and gastrointestinal disease in mammals, including humans. It is, therefore, important to understand the distribution and transmission of adenoviruses in infected organisms. Bats have been found to serve as reservoirs in the evolution of adenoviruses due to bats' atypical ability of harboring genetically diverse viruses within a single geographic location or host species. In the United States, adenovirus DNA has been detected in Rafinesque's big-eared bat (Corynorhinus rafinesquii) in Kentucky and in Cave Myotis (Myotis velifer) in Oklahoma, but adenoviruses have not yet been screened in Texas bats. I screened intestinal (n=65) and fecal samples (n=102) of M. velifer collected in 2018-2021 from 13 Texas counties and found all samples to be negative for adenovirus DNA. The absence of detection supports the hypothesis of low presence of adenoviruses in Cave Myotis in Texas.