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Epidemiology of the outbreak,vectors and reservoirs of cutaneous leishmaniasis in Mali:A systematic review and meta-analysis

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Asian Pacific Journal of Tropical Medicine 2016年第10期9卷 963-968页

作者： abdoulaye Kassoum Kone Doumbo Safiatou Niare Mahamadou Ali Thera Kassoum Kayentao abdoulaye djimde Pascal Delaunay Bourema Kouriba Pascal del Giudice Arezki Izri Pierre Marty Ogobara K Doumbo Malaria Research and Training Center Department of Epidemiology of Parasitic Diseases/Faculty of Medicineand Dentistry/ UMI-3189/University of ScienceTechnique and Technology of BamakoBP 1805BamakoMali Inserm U1065 Centre Mediterraneen de Medecine MoleculaireC3MUniversite de Nice-Sophia Antipolis151route St Antoine de GinestiereBP2319406204 Nice CedexFrance AND Parasitologie-MycologieHopital de l'ArchetCentre Hospitalier Universitaier de NiceFrance Unit of Infectious et Tropical Diseases Hospital Bonnet 83700 FrejusFrance Parasitology-Mycology Hospital AvicenneParis 13 UniversityUMR 190Aix-Marseille UniversityFrance

Objective: To compile available data and to estimate the burden, characteristics and risks factors of cutaneous leishmaniasis(CL) in Mali. Methods: Articles in English and French were searched in Hinari, Google scholar and PubM ed. Unpublished studies were identified by searching in ***. Terms used were Cutaneous leishmaniasis Mali; Leishmaniasis Mali, Leishmania major Mali; or Phlebotomus Mali or Sergentomyia Mali. We select descriptive studies on CL and sandflies in Mali. Data were extracted and checked by the author, then analyzed by region, by study population and type of biological tests, meta-analysis approach with STATA software was used. Results: Nineteen published(n=19) and three unpublished were included. CL epidemiology was characterized by occurrence of clinical cases in different areas of Mali, outbreaks restricted to known areas of transmission and isolated cases diagnosed in travelers. In endemic areas, population at risk are young age persons, farmers, ranchers, housewives, teachers and military personnel. The annual incidence ranged from 290 to 580 cases of CL. Leishmania major is the main species encountered throughout the country(North Savanna, Sahel and Sub-Saharan areas), and Phlebotomus duboscqi has been identified as the vector and Sergentomyia(Spelaeomyia)darlingi as possible vector. The overall estimated prevalence of positive LST(Leishmanin Skin Test) was 22.1%. The overall frequency of CL disease among suspected cases was 40.3%. Conclusions: Although descriptive, hospital-based and cross-sectional studies are robust enough to determine the extent of CL in Mali; future well-designed eco-epidemiological studies at a nationwide scale are needed to fully characterize CL epidemiology and risk factors in Mali.

关键词： Epidemiology Leishmaniasis Cutaneous Risk Factors Vectors Reservoirs Mali

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Human-water interactions associated to cercarial emergence pattern and their influences on urinary schistosomiasis transmission in two endemic areas in Mali

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Infectious Diseases of Poverty 2024年第4期13卷 103-104页

作者： Bakary Sidibe Privat Agniwo Assitan Diakite Boris Agossou Eyaton-olodj Segnito Savassi Safiatou Niare Doumbo Ahristode Akplogan Hassim Guindo Moudachirou Ibikounle Laurent Dembele abdoulaye djimde Jerome Boissier abdoulaye Dabo Department of Epidemiology of Infectious Diseases Faculty of Pharmacy University of Sciences Techniques and Technologies of Bamako IRL 3189 Bamako Mali Centre de Recherche Pour La Lutte Contre Les Maladies Infectieuses Tropicales (CReMIT/TIDRC) Université d’Abomey-Calavi Abomey-Calavi Bénin IHPE Univ. Montpellier CNRS Ifremer Univ. Perpignan Via Domitia Perpignan France

Background Mali is known to be a schistosomiasis-endemic country with a limited supply of clean *** has forced many communities to rely on open freshwater bodies for many human-water contact(HWC)***,the relationship between contact with these water systems and the level of schistosome infection is cur-rently receiving limited *** study assessed human-water interactions including cercarial emergence pat-tern and their influences on urinary schistosomiasis transmission in two communities in the Kayes district of *** We carried out a parasitological study frst in children in September 2021,then a cross-sectional study of quantitative observations of human-water contact activities in the population,and finally a study of snail infectiv-ity at contact points in September *** study took place in two communities,Fangoune Bamanan and Diakalel in the Kayes region of western *** chronobiological study focused on cercarial release from naturally infected *** cercariae were molecularly genotyped by targeting the cox1 region,and the ITS and 18S ribosmal DNA gene(18S rDNA)regions of the *** between sociodemographic parameters,human water-contact points and hematuria were established using multivariate statistical analysis or the logistic regression *** The main factor predisposing the 97 participants to water contact was domestic activity(62.9%).Of the 378 snails collected at 14 sampling sites,27(7.1%)excreted schistosome cercariae,with 15.0%(19/126)at Fangoune Bamanan and 3.3%(8/252)at *** release of Schistosoma cercariae shows three different patterns in Fangoune Bamanan:(i)an early release peak(6:00-8:00 AM),(i)a mid-day release peak(10:00 AM-12:00 PM)and(ili)a double peak:(6:00-8:00 AM)and(6:00-8:00 PM)cercariae release;and two release patterns in Diakalel:early release(6:00-8:00 AM)and(il)mid-day release(12:00-2:00 PM).All cercariae released during early diurnal(6:00-8:00 AM)or nocturnal

关键词： Schistosomiasis Chronobiology Cercarial emission Snail Water contact Mali

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Molecular markers for artemisinin and partner drug resistance in natural Plasmodium falciparum populations following increased insecticide treated net coverage along the slope of mount Cameroon:cross-sectional study

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Infectious Diseases of Poverty 2017年第1期6卷 1205-1214页

作者： Tobias O.Apinjoh Regina N.Mugri Olivo Miotto Hanesh F.Chi Rolland B.Tata Judith K.Anchang-Kimbi Eleanor M.Fon Delphine A.Tangoh Robert V.Nyingchu Christopher Jacob Roberto Amato abdoulaye djimde Dominic Kwiatkowski Eric A.Achidi Alfred Amambua-Ngwa Department of Biochemistry and Molecular Biology University of BueaBueaCameroon Department of Microbiology and Parasitology University of BueaBueaCameroon Mahidol-Oxford Research Unit Faculty of Tropical MedicineMahidol UniversityBangkokThailand Department of Zoology and Animal Physiology University of BueaBueaCameroon Department of Medical Laboratory Science University of BueaBueaCameroon Wellcome Trust Sanger Institute HinxtonCambridge CB101SAUK Malaria Research and Training Centre BamakoMali MRC Unit FajaraThe Gambia

Background:Drug resistance is one of the greatest challenges of malaria control programmes,with the monitoring of parasite resistance to artemisinins or to Artemisinin Combination Therapy(ACT)partner drugs critical to elimination *** of resistance to a wide panel of antimalarials were assessed in natural parasite populations from southwestern ***:Individuals with asymptomatic parasitaemia or uncomplicated malaria were enrolled through crosssectional surveys from May 2013 to March 2014 along the slope of mount *** falciparum malaria parasitaemic blood,screened by light microscopy,was depleted of leucocytes using CF11 cellulose columns and the parasite genotype ascertained by sequencing on the Illumina HiSeq ***:A total of 259 participants were enrolled in this study from three different *** some alleles associated with drug resistance in pfdhfr,pfmdr1 and pfcrt were highly prevalent,less than 3%of all samples carried mutations in the pfkelch13 gene,none of which were amongst those associated with slow artemisinin parasite clearance rates in Southeast *** most prevalent haplotypes were triple mutants PfdhfrI51R59N108I164(99%),pfcrt-C72V73I74E75T76(47.3%),and single mutants PfdhpsS_(436)G_(437)K_(540)A_(581)A_(613)(69%)and Pfmdr1 N_(86)F)(184)D_(1246)(53.2%).Conclusions:The predominance of the Pf pfcrt CVIET and Pf dhfr IRN triple mutant parasites and absence of pfkelch13 resistance alleles suggest that the amodiaquine and pyrimethamine components of AS-AQ and SP may no longer be effective in their role while chloroquine resistance still persists in southwestern Cameroon.

关键词： Molecular markers Drug resistance Plasmodium falciparum

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