Elevated and sustained anti-feeding effect of Scalibor® deltamethrin collar against the sand fly Phlebotomus perniciosus in dogs confirmed for 1 year following treatment.

Autor: Evans A; Clinvet SA Morocco, Mohammedia, Morocco., Bongiorno G; Unit of Vector-borne Diseases, Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy., Fourie JJ; Clinvet International (Pty) Ltd, Bloemfontein, South Africa., Lekouch N; Clinvet SA Morocco, Mohammedia, Morocco., Bianchi R; Unit of Vector-borne Diseases, Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy., Khoury C; Unit of Vector-borne Diseases, Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy., Thomas E; MSD Animal Health Innovation GmbH, Schwabenheim, Germany., Chiummo R; MSD Animal Health Innovation GmbH, Schwabenheim, Germany., Gradoni L; Unit of Vector-borne Diseases, Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy.
Jazyk: angličtina
Zdroj: Medical and veterinary entomology [Med Vet Entomol] 2022 Mar; Vol. 36 (1), pp. 14-19. Date of Electronic Publication: 2021 Aug 27.
DOI: 10.1111/mve.12545
Abstrakt: Dogs are reservoir hosts for Leishmania infantum, a protozoan parasite transmitted by phlebotomine sand flies. The anti-feeding and fast-killing efficacy of Scalibor® deltamethrin collars against experimental Phlebotomus perniciosus challenges on dogs was determined over 1 year. Two groups of 8 dogs each were fitted with placebo (control) or deltamethrin collars (treated) on Day 0 and exposed to sand flies approximately every 28 days up to Day 364. After each exposure, anti-feeding and fast-killing efficacy rates were determined by comparing blood-fed or live insects, respectively, in the treated vs. the control group. Blood-fed and live sand flies were significantly less in treated dogs as compared to control dogs at each assessment. The anti-feeding efficacy rate exceeded 90% except on Day 337 (89%) but increased again (96%) on Day 364. Fast killing efficacy was <74% over the study when considering all flies. However, this value increased cumulatively to 98% when only blood-fed flies were compared between groups. Scalibor® collars are highly effective at preventing P. perniciosus blood-feeding and in fast-killing flies taking a blood meal for up to 1 year after application. These strong and long-lasting effects are an important strategic component for L. infantum transmission control.
(© 2021 The Authors. Medical and Veterinary Entomology published by John Wiley & Sons Ltd on behalf of Royal Entomological Society.)
Databáze: MEDLINE
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