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Forskningsartikel2018Vetenskapligt granskadÖppen tillgång

An unusual presentation of pseudocowpox associated with an outbreak of pustular ulcerative vulvovaginitis in a Swedish dairy herd

Blomqvist, Gunilla; Ullman, Karin; Segall, Thomas; Hauzenberger, Elenor; Renstrom, Lena; Persson-Waller, Karin; Leijon, Mikael; Valarcher, Jean-Francois

Sammanfattning

Species Pseudocowpox virus (PCPV; family Poxviridae) is known to cause pustular cutaneous disease in cattle. We describe an outbreak of pseudocowpox with an unusual clinical picture in a free-stall dairy herd of similar to 80 cows. Approximately 90% of the cows had vesicles, erosions, papules, and scabs on the vulva and vaginal mucosa. Histologic analysis of biopsy tissues indicated a primary, although not specified, viral infection. Transmission electron microscopy revealed parapoxvirus particles in both tissue and vesicular materials. Deep sequencing analysis of extracted DNA from swabbed vesicle areas gave a contig of nearly 120,000 nucleotides, matching the PCPV strain VR 634 with 100% identity. Analyses confirmed the absence of other potential causes of pustular vulvovaginitis such as bovine herpesvirus 1 and Ureaplasma diversum. A rolling cow brush was suspected to be the fomite.

Nyckelord

Cattle; pseudocowpox virus; pustular ulcerative vulvovaginitis

Publicerad i

Journal of Veterinary Diagnostic Investigation
2018, Volym: 30, nummer: 2, sidor: 256-259
Utgivare: SAGE PUBLICATIONS INC