Dirofilarioso are important parasitic diseases of dogs and other carnivores and, in Italy, they are due to Dirofilaria immitis and D. repens, both zoonotic infections. The survey was conducted between March and July 2003 targeting dogs residing in the provinces of Perugia and Arezzo. The researchers contacted nine veterinary practices and privately-owned dogs were also enrolled in the survey. Blood samples were taken from the dogs for the detection and species identification of circulating microfilariac.
Epidemiological studies conducted in recent shows that there is an increasing force of canine dirofilariosis spreading throughout the previously uninfected European areas. This presence was again confirmed in this study. The prevalence of D. immitis infection was higher than previous studies.