Serological and entomological survey on canine leishmaniasis in Lampedusa island, Italy

Background: During last decade Lampedusa island (Italy) has been interested by a deep social change caused by the massive arrival of migrants from north Africa. The goal of this study was to evaluate current CanL burden and risk factors for Visceral Leishmaniosis (VL) on Lampedusa, actually based on very few data obtained in a previous study performed fifteen years ago. Two hundred and forty-two dogs were enrolled for the detection of Leishmania infantum infection by serology. In addition, an entomological investigation was performed to confirm the presence of Leishmania-vectors. Results: Seroprevalence was of 54.13%. 223 sand flies specimens were collected. Among them, 4 species were identified: Phlebotomus perniciosus, P. papatasi, P. neglectus, Sergentomia minuta, with P. perniciosus the most abundant (67.7%; p < 0.01). Conclusion: The high proportion of seropositive dogs together with the presence of the most competent vector for L. infantum, P. perniciosus, demonstrate that L. infantum abundantly circulates in the island and may constitute a risk for people, particularly for hosted migrants.