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Cats and dogs are treated as family members by most pet owners. Therefore, a high quality of veterinary care and preventive medicine is imperative for animal health and welfare and for the protection of humans from zoonotic pathogens.

29The present study investigated the presence of endo-and ecto-parasites, and vector-borne pathogens, 30 in dogs from four islands of Greece. A total of 200 owned and sheltered dogs were examined with 31 different microscopic, serological and molecular methods. 32Of the examined dogs, 130 (65%) were positive for one or more parasites and/or vector-borne 33 pathogens. The most common zoonotic intestinal helminths recorded were Ancylostomatidae 34 (12.5%) and Toxocara canis (3.5%). Ninety-three dogs (46.5%) seroreacted to Rickettsia conorii. 35 Twenty-two (11%) of them were also PCR positive and 7 (3.5%) showed corpuscoles suggestive of 36 Rickettsia spp. on the blood smears. Nineteen dogs (9.5%) were seropositive for Ehrlichia canis, three 37 of them being also PCR positive. Dogs positive for Anaplasma phagocytophilum-Anaplasma platys 38 (1%), Dirofilaria immitis (0.5%) and Babesia canis (0.5%) were also found. Fleas and ticks were 39 recorded in 53 (26.5%) and 50 (25%) dogs and all specimens were identified as Ctenocephalides felis 40 felis and Rhipicephalus sanguineus sensu latu. Binary multiple univariate Generalized Linear Models 41 were used to investigate factors and clinical signs related to the recorded positivity, while the 42 association of specific signs with the pathogens was evaluated using tests of independence. 43 Knowledge of occurrence and impact of zoonotic parasites and vector-borne pathogens in dog 44 populations is crucial to prevent the infection in animals and people, and to control the risk of 45 spreading of these pathogens in endemic and non-endemic areas. 46 47 Author summary 48 Both owned and sheltered dogs can harbor a variety of intestinal and extra-intestinal endoparasites, 49as well as vector-borne pathogens and ectoparasites, of zoonotic concern. Dog shelters and stray dogs 50 are present in several touristic areas of Greece, including Sporades and Cyclades islands, where 51 tourists often bring their pets with them, likely travelling from non-endemic to endemic areas. The 52 present study has been carried out with the aim to evaluate the occurrence of the aforementioned 53 pathogens. Data obtained showed that they are present in canine populations of Greece, with 54 possibilities of infection for travelling dogs, which can also contribute to the spreading of zoonotic 55 vector-borne diseases, introducing new pathogens in previously non-endemic areas. For these 56 reasons, a constant monitoring of the epidemiological situation, improving control measures and 57 correct diagnostic approaches are of primary importance for the prevention of canine and human 58 infections, decreasing the spreading of potentially deadly pathogens. 59 60 61 62 65circulation of zoonotic infections are difficult to control. Because of a lifestyle that implies a low-66 grade of sanitary management, stray and free-roaming dogs are at high risk of becoming infected with 67 a wide range of pathogens. Consequently, they act as a permanent source of infection for vectors, 68 other animals an...

Leishmaniosis by Leishmania infantum is a major zoonotic Vector-Borne Disease (VBD) in terms of geographic distribution, pathogenicity and zoonotic potential. While dogs are the main reservoir of L. infantum, the infection in cats is poorly understood although increasingly reported from enzootic and non-enzootic areas. The Mediterranean basin is a key area for leishmaniosis and includes touristic spots that require continuous surveillance for VBDs in consideration of the growing tendency of tourists to travel with their pets. This study evaluated L. infantum seroprevalence in cats living in selected touristic localities of Italy and Greece. A total of 269 cat serum samples from three Sites i.e., 76, 40, and 153 from Adriatic Coast of Abruzzo, Italy (Site A), Giglio Island, Tuscany, Italy (Site B), and Mykonos Island, Greece (Site C), respectively, were included in the survey. Sera samples were subjected to an indirect immunofluorescence antibody assay for the detection of anti-L. infantum specific IgG. Associations between possible risk factors and seropositivity to L. infantum were statistically evaluated. Antibodies against L. infantum were detected in eight out of 269 (3.0%) cats tested i.e., 4/76 (5.3%), 1/40 (2.5%), and 3/153 (2.0%), from sites A, B, and C, respectively. A statistical association between anti-L. infantum antibodies and cohabitation with dogs was shown. This study indicates that feline populations living in the examined Italian and Greek touristic areas are exposed to L. infantum and that they may contribute to the circulation of L. infantum, enhancing the risk of infection for dogs and humans.

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