The geographic distribution and financial impact of canine parvovirus in Australia.

Canine parvovirus (CPV) is an important cause of serious and often fatal disease in dogs worldwide, however, a national survey of CPV cases in Australia has not been conducted since 1982. For this study we surveyed the entire Australian veterinary clinic population and achieved a response rate of 23.5% (534 unique veterinary clinics). Respondents reported 4,451 CPV cases in 2015 and 4,219 cases in 2016; the estimated total CPV case load across Australia was 20,661 in 2015 and 20,110 in 2016. The overall reported euthanasia rate was 41%. Geospatial analysis revealed large numbers of CPV cases in rural and remote areas of Australia. Where cases occurred in capital city areas, these were found in peri-urban areas, away from the inner city. The median cost to treat CPV cases was $A1,500 per patient. A significant difference in the cost of treating cases was found between Australian states; Western Australia (median $A2,500) was the most expensive state. There was a strong correlation between cost of treatment and rate of euthanasia without treatment reflecting the important role of affordability in disease-related euthanasia. These findings highlight the considerable impact of the evolving CPV situation in Australia, particularly in regional and rural areas. This survey is the most comprehensive epidemiological investigation of canine parvoviral-related disease, to date, globally and provides a process for national disease surveillance.

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