Detailed pathological and virological examinations were carried out on 25 cetaceans found stranded between 1990 and 1993 on the coasts of six Italian regions (Latium, Tuscany, Apulia, Abruzzo, Veneto and Sicily). There were 16 striped dolphins (Stenella coeruleoalba), three bottlenosed dolphins (Tursiops truncatus), three Risso's dolphins (Grampus griseus), one rough-toothed dolphin (Steno bredanensis), one fin whale pup (Balaenoptera physalus), and one minke whale (Balaenoptera acutorostrata). Apart from parasitic diseases (44 per cent), the most frequently detected lesions were pneumonia (68 per cent), enteritis (44 per cent), non-purulent hepatitis (40 per cent), interstitial nephritis (32 per cent) and encephalitis (32 per cent). Morbilivirus infection was diagnosed by immunocytochemistry in four striped dolphins, two stranded on the coasts of Latium in 1991 and two on the coasts of Tuscany in 1993. Despite the presence of lesions consistent with morbilliviral pneumonia in two other striped dolphins stranded on the coast of Apulia in 1991, no morbillivirus antigen was demonstrated in the tissues of these animals. Anticanine distemper virus antibodies were detected in the serum of the adult minke whale found stranded on the coast of Tuscany in 1993. However, no viruses were isolated from the tissues of any of the 25 cetaceans.
Prevalence and risk factors of Leishmania infantum, Dirofilaria spp. and other potentially zoonotic or canine-specific endoparasite infections were assessed in 639 kennel dogs from central Italy. To this end, individual blood and fecal samples were examined using parasitological, immunological and molecular techniques. The presence of compatible clinical pictures, as well as age and gender were considered as putative risks factors. To evaluate risk factors, multivariable analysis with logistic regression and univariable analysis with a Chi square test and a Fischer’s exact test were performed. Overall, 52.6% of dogs (95% CI 48.6-56.5) were found positive, while 39.6% of dogs (95% CI 35.8-43.5) were infected by potentially zoonotic species. Leishmania infantum and
Dirofilaria repens showed prevalences of 2.5% (95% CI 1.5-4.1) and 2.8% (95% CI 1.7-4.5), respectively. The prevalence of cardiorespiratory parasites was 7.8% (95% CI 5.9-10.3) and included the species Angiostrongylus vasorum, Eucoleus aerophilus, Eucoleus boehmi and D. immitis; the latter showed a prevalence of 0.2% (95% CI 0.001-1). Intestinal parasites were significantly prevalent (38.8%, 95% CI 35-42.7) and they consisted mainly of species of major zoonotic concern, including ancylostomatids, Toxocara canis, Giardia duodenalis, Dipylidium caninum, Taeniidae, Strongyloides stercoralis and Cryptosporidium parvum. Endoparasites were significantly prevalent in clinically suspected dogs. Leishmania infantum and cardiorespiratory nematodes were prevalent in older dogs, while intestinal parasites were prevalent in younger dogs. Results show high dog and public health risks in kennels in central Italy, and suggest the need for more effective control measures.
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