IngentaConnect Disease suspected to be caused by Ross River virus infection of h...

Authors: El-Hage, CM¹; McCluskey, MJ²; Azuolas, JK³

Source: Australian Veterinary Journal, Volume 86, Number 9, September 2008 , pp. 367-370(4)

Abstract:

Ross River Virus (RRV) was believed to be the cause of acute illness in four horses around the Bellarine peninsula in south-west Victoria, Australia. The horses presented with clinical signs including petechial haemorrhages, lymphadenopathy, distal limb swelling and reluctance to move. Fibrinogen was also elevated in three of the four horses. Whilst no virus was isolated, serological testing revealed elevated RRV IgM titres in all horses indicating acute infection. The outbreak occurred at a time when a known RRV vector, the mosquito Aedes camptorhynchus was recorded at very high levels in the region.

This report is one of very few to attribute specific signs of disease to RRV in horses in conjunction with serological evidence of infection.

Aust Vet J 2008;86:367-370

Keywords: horses; Ross River virus

Document Type: Research article

DOI: 10.1111/j.1751-0813.2008.00339.x

Affiliations: 1: Department of Primary Industries. PO Box 103, Geelong, Vic 3220, AustraliaCurrent address: University of Melbourne. Department of Veterinary Science, 250 Princes Hwy, Werribee, Vic 3030, Australia;, Email: cmeh@unimelb.edu.au 2: Allcare Equine Centre, PO Box 145, Newcomb, Vic 3219, Australia 3: Department of Primary Industries, 475 Mickleham Rd, Attwood, Vic 3049, Australia

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Disease suspected to be caused by Ross River virus infection of horses