Journal
JOURNAL OF VETERINARY DIAGNOSTIC INVESTIGATION
Volume -, Issue -, Pages -Publisher
SAGE PUBLICATIONS INC
DOI: 10.1177/10406387231161053
Keywords
California; Columbid alphaherpesvirus 1; pigeons; pigeon herpesvirus
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Naturally occurring pigeon herpesvirus infection in domestic pigeons in California was characterized. Histopathology was the main method used for diagnosis, with virus isolation, transmission electron microscopy, and PCR used in some cases. Most infections were concurrent with other diseases.
We characterized naturally occurring pigeon herpesvirus (PiHV; Columbid alphaherpesvirus 1) infection in domestic pigeons in California. We retrieved and analyzed 62 pathology reports produced between 1991 and 2014 at the California Animal Health and Food Safety Laboratory System. In 56 of the cases, the diagnosis of PiHV infection was established based on histopathology, either alone (44 cases) or combined with virus isolation (VI; 8), transmission electron microscopy (TEM; 3), or PCR (1); in the remaining 6 cases, the diagnosis was established based on VI (5 cases) or TEM (1) alone. PiHV infection affected 1 system in 34, 2 in 16, and >= 3 systems in 6 cases; data were not available for the remaining 6 cases. Most commonly affected was the digestive system (55 cases), followed by the respiratory tract (5) and lymphoid system (2). The liver (39 cases), crop (17), and esophagus (14) were the organs affected most commonly. Many affected cells often bore single eosinophilic intranuclear inclusion bodies. PiHV infection was a secondary diagnosis or incidental finding in 35 cases. Most (55) cases had 1 (21), or up to 4 (34), other concurrent infections; the most common concurrent infections were pigeon circoviral infection (26), trichomonosis (24), aspergillosis (11), and colibacillosis (10).
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