Occurrence of Leishmania spp. in phlebotomine sand flies and dogs in Guelma region, North-eastern Algeria

IF 1.4 Q3 PARASITOLOGY

Veterinary parasitology, regional studies and reports Pub Date : 2025-01-01 DOI:10.1016/j.vprsr.2024.101176

Ilham Ferdes , Maria Stefania Latrofa , Livia Perles , Marcos Antonio Bezerra-Santos , Bachir Medrouh , Meryem Benmarce , Karim Ouachek , Ahcène Hakem , Ismail Lafri , Domenico Otranto

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Abstract

Leishmania spp. are sand fly-borne parasitic protozoa of worldwide distribution that may severely affect the health and welfare of dogs as well as of other mammalian species, including humans. Algeria is among the most affected countries, counting several cases of Leishmania infantum infection in humans and dogs. Here, we assessed the occurrence of Leishmania species in both phlebotomine sand fly and dogs in the Guelma region, Northeast of Algeria. Sand flies were collected from July to September 2022, followed by a survey of canine leishmaniasis (CanL) from September 2023 to February 2024. Additionally, to understand the risk of human infection a retrospective data on cases of leishmaniasis recorded in the region from 2012 to 2023 were reported. Sand fly specimens and canine blood samples were tested by quantitative PCR (qPCR) for Leishmania spp., while dog serum samples were processed for anti-L. infantum antibodies detection by immunofluorescent antibody test (IFAT). Of the 1478 sand flies (n = 318 females; n = 1160 males), seven species were identified (i.e., Phlebotomus papatasi, Ph. perfiliewi, Ph. sergenti, Ph. perniciosus, Ph. longicuspis, Ph. ariasi, and Sergentomyia minuta). Leishmania spp. was detected in Ph. perniciosus, Ph. perfiliewi, Ph. papatasi, and Ph. sergenti (i.e., 3.7 %; n = 10). The overall seroprevalence rate was 58.2 %, with 1.6 % of dog blood samples positive for L. infantum at molecular screening. Multivariate analysis of the different risk factors revealed that CanL seropositivity was strongly related to dog age (> 1 year) (OR = 8.35, 95 % CI: 3.43–23.93), the autumn season (OR = 2.95, 95 % CI: 1.33–8.62), and lack of insecticide application (OR = 6.69, 95 % CI: 2.61–22.02). A total of 71 human cases of cutaneous (CL) and visceral (VL) leishmaniasis were recorded. Data presented reveal the occurrence of CanL in Guelma region, advocating for control program measures to be implemented in this part of Algeria.

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来源期刊

Veterinary parasitology, regional studies and reports Multiple-

CiteScore

2.90

自引率

7.10%

发文量

126

审稿时长

97 days

期刊介绍： Veterinary Parasitology: Regional Studies and Reports focuses on aspects of veterinary parasitology that are of regional concern, which is especially important in this era of climate change and the rapid and often unconstrained travel of people and animals. Relative to regions, this journal will accept papers of the highest quality dealing with all aspects of disease prevention, pathology, treatment, epidemiology, and control of parasites within the field of veterinary medicine. Also, case reports will be considered as they add to information related to local disease and its control; such papers must be concise and represent appropriate medical intervention. Papers on veterinary parasitology from wildlife species are acceptable, but only if they relate to the practice of veterinary medicine. Studies on vector-borne bacterial and viral agents are suitable, but only if the paper deals with vector transmission of these organisms to domesticated animals. Studies dealing with parasite control by means of natural products, both in vivo and in vitro, are more suited for one of the many journals that now specialize in papers of this type. However, due to the regional nature of much of this research, submissions may be considered based upon a case being made by the author(s) to the Editor. Circumstances relating to animal experimentation must meet the International Guiding Principles for Biomedical Research Involving Animals as issued by the Council for International Organizations of Medical Sciences (obtainable from: Executive Secretary C.I.O.M.S., c/o W.H.O., Via Appia, CH-1211 Geneva 27, Switzerland).