Publications by authors named "Jean-Paul Demoncheaux"

African trypanosomoses, whose pathogens are transmitted by tsetse flies, are a threat to animal and human health. Tsetse flies observed at the military base of the French Forces in Côte d'Ivoire (FFCI base) were probably involved in the infection and death of military working dogs. Entomological and parasitological surveys were carried out during the rainy and dry seasons using "Vavoua" traps to identify tsetse fly species, their distribution, favorable biotopes and food sources, as well as the trypanosomes they harbor.

View Article and Find Full Text PDF
Article Synopsis
  • This study investigates the presence of Bartonella species in African giant pouched rats and their fleas in Dakar, Senegal.
  • Researchers captured 20 rats and identified 1117 fleas, successfully detecting DNA from Bartonella in 148 of 170 fleas and isolating strains from 17 rats.
  • The findings suggest that the isolated strains include known species and potentially new species, which may pose a public health risk in the area due to their high prevalence of infection.
View Article and Find Full Text PDF

Introduction: Depending on their theatre of operation, French soldiers may potentially be exposed to scorpion stings and snakebites. Following the recommendations of a French military health service (FMHS) technical committee for envenomation, the FMHS provides antivenoms appropriate to each deployment. This work aimed to evaluate this risk of envenomation and to assess the antivenoms used by the FMHS in operational theatres since the creation of this committee in 2015.

View Article and Find Full Text PDF

Piroplasms are Apicomplexa tick-borne parasites distributed worldwide. They are responsible for piroplasmosis (theileriosis and babesiosis) in Vertebrata and are therefore of medical and economic importance. Herein, we developed a new real time PCR assay targeting the 5.

View Article and Find Full Text PDF

A serological study was carried out in two Senegalese villages located in the Sine-Saloum region in order to estimate the presence of anti-leptospiral antibodies in humans and animals, and to identify the predominant serogroups. Seven hundred and forty-nine serum samples were collected from humans (n = 545), dogs (n = 33), donkeys (n = 20), goats (n = 52), sheep (n = 43) and N'Dama cattle (n = 56), all originated from Dielmo and Ndiop villages. All samples were tested for different serovars of pathogenic Leptospira species by the microscopic agglutination test.

View Article and Find Full Text PDF

We report several cases of Meloidae-related blisters in French soldiers deployed to Mali. Blister beetles of the Meloidae family produce cantharidin, a blistering agent, for defensive purposes. These virtually cosmopolitan Coleoptera can cause significant nuisance to travellers and deployed soldiers especially during the rainy season in the Sahel region.

View Article and Find Full Text PDF

We report the case of an Anthia sexmaculata sexmaculata-associated necrotic burn in a French expatriate in Mauritania. Anthia spp.-related injury is a common though underreported health issue in the Sahelo-Saharan area.

View Article and Find Full Text PDF

A rapid immuno-migration test for the serological detection of canine monocytic ehrlichiosis, Witness® Ehrlichia (WE) (Zoetis, France), was evaluated in 528 serum samples from dogs living in endemic areas of West and East Africa: Senegal (N=208), Ivory Coast (N=7), Sudan (N=27), and Djibouti (N=286). Of these dogs, 200 were French military working dogs (MWD) temporarily residing in Africa. The WE test results were compared with those obtained by indirect immunofluorescence (IFA).

View Article and Find Full Text PDF
Article Synopsis
  • A field study was conducted in two Dakar kennels with 34 dogs to examine the prevalence of tick-borne diseases, focusing on infections from Ehrlichia canis, Anaplasma platys, and Babesia spp.
  • Initially, 53% of dogs tested positive for E. canis, while A. platys was found in one dog, and none tested positive for Babesia spp.
  • After treatment with doxycycline and a new monthly tick prevention method, the number of infected dogs significantly dropped, and all dogs remained healthy throughout the study period.
View Article and Find Full Text PDF
Article Synopsis
  • Tick-borne rickettsioses are prevalent in North Africa, with several countries such as Morocco, Algeria, and Tunisia affected by these diseases.
  • The most recognized rickettsiosis in Tunisia is Mediterranean spotted fever, linked to Rickettsia conorii conorii, but R. aeschlimannii had only been identified through serology until now.
  • In a study conducted in October 2008, ticks from a dromedary in Tunisia were tested, marking the first molecular detection of R. aeschlimannii in ticks from the region.
View Article and Find Full Text PDF

Organophosphonate (OP) nerve agents, such as soman, are potent irreversible inhibitors of central and peripheral acetylcholinesterases (AChEs). Pre-treatment of OP poisoning relies on the subchronic administration of a reversible AChE inhibitor. In the present limited study, the protective effects against soman toxicity of such compounds, i.

View Article and Find Full Text PDF