benthic dinoflagellates from the coral reef lagoon of mayotte island (s-w indian ocean); identification, toxicity and preliminary ecophysiological study. | the community of benthic dinoflagellates of mayotte island is similar to those of other regions. four clones of gambierdiscus toxicus and of other benthic dinoflagellates species (prorocentrum spp., ostreopsis sp., amphidinium spp.) have been isolated and screened for their crude toxicity using mouse-test. the toxigenic reservoir seems moderated. one toxic clone of g. toxicus has been studied for factors governing growth and photosynthetic activity of this species: salinity, temperature, light i ... | 1992 | 1340343 |
plasmodium falciparum resistant to chloroquine and to pyrimethamine in comoros. | we report the outcome of chloroquine treatment and the prevalence of mutations at codon 86 of the pfmdr1 gene, at codon 76 of the pfcrt gene, and at codon 108 of the pfdhfr gene in clinical isolates of plasmodium falciparum collected from 30 children under 10 years of age living in the comoros union. this in vivo study was carried out in february and march 2001 in moroni. chloroquine treatment failed in 23 children (76.6%; 95% confidence interval: 57.7 to 90.1%). subsequent genotyping showed tha ... | 2004 | 15638145 |
efficacy of artesunate plus amodiaquine, artesunate plus sulfadoxine-pyrimethamine, and chloroquine plus sulfadoxine-pyrimethamine in patients with uncomplicated plasmodium falciparum in the comoros union. | health policy makers in comoros union have considered a policy change recommending combination treatment to control malaria. we evaluated the efficacy of three antimalarial drug combinations, taken orally, to enable the authorities to make an evidence-based choice. the study was carried out in patients of 2-70 years old in moroni, moheli and anjouan in 2003. we enrolled 168 patients with uncomplicated malaria from 1097 outpatients screened at the health centres. one hundred and fifty-eight patie ... | 2007 | 17568549 |
leptospira mayottensis sp. nov., a pathogenic species of the genus leptospira isolated from humans. | a group of strains representing species of the genus leptospira, isolated from patients with leptospirosis in mayotte (indian ocean), were previously found to be considerably divergent from other known species of the genus leptospira. this was inferred from sequence analysis of rrs (16s rrna) and other genetic loci and suggests that they belong to a novel species. two strains from each serogroup currently identified within this novel species were studied. spirochaete, aerobic, motile, helix-shap ... | 2014 | 25249563 |
first record of phlebotomine sandflies (diptera: psychodidae) in the comoros archipelago with description of sergentomyia (vattieromyia) pessoni n. sp. and s. (rondanomyia) goodmani comorensis n. ssp. | no phlebotomine sandflies had ever been reported in the comoros archipelago, including the three islands of the republic of the union of comoros (grande comore, mohéli and anjouan) and the french oversea department of mayotte. during three field surveys carried out in 2003, 2007 and 2011, we provided the first record of phlebotomine sandflies in this area. a total of 85 specimens belonging to three species were caught: a new species s. (vattieromyia) pessoni n. sp. (two females from grande comor ... | 0 | 22910662 |
stegomyia mosquitoes in mayotte, taxonomic study and description of stegomyia pia n. sp. | four mosquito species, including a new species of the genus stegomyia, are reported from mayotte in the western indian ocean. the most abundant species were stegomyia aegypti and st. albopicta. only one species of the st. simpsoni group was observed, st. bromeliae. the fourth species is stegomyia pia le goff & robert n. sp. of which the larva, pupa, male and female are here described. the larval stages of st. pia n. sp. are morphologically similar to st. aegypti but differ in the number of branc ... | 2013 | 24025625 |
major decrease in malaria transmission on mayotte island. | plasmodium falciparum is responsible for most malaria cases on mayotte island, in the comorian archipelago. malaria is endemic and a major public health problem in the archipelago with an intense, stable and permanent transmission. this study reports results of 8 years of malaria surveillance from 2007 to 2014 after the strengthening of malaria control activities in mayotte and the neighbouring islands. | 2015 | 26285699 |
microbial diversity and cyanobacterial production in dziani dzaha crater lake, a unique tropical thalassohaline environment. | this study describes, for the first time, the water chemistry and microbial diversity in dziani dzaha, a tropical crater lake located on mayotte island (comoros archipelago, western indian ocean). the lake water had a high level of dissolved matter and high alkalinity (10.6-14.5 g l-1 eq. co32-, i.e. 160-220 mm compare to around 2-2.5 in seawater), with salinity up to 52 psu, 1.5 higher than seawater. hierarchical clustering discriminated dziani dzaha water from other alkaline, saline lakes, hig ... | 2017 | 28045976 |
species delimitation in the reef coral genera echinophyllia and oxypora (scleractinia, lobophylliidae) with a description of two new species. | scleractinian corals are affected by environment-induced phenotypic plasticity and intraspecific morphological variation caused by genotype. in an effort to identify new strategies for resolving this taxonomic issue, we applied a molecular approach for species evaluation to two closely related genera, echinophyllia and oxypora, for which few molecular data are available. a robust multi-locus phylogeny using dna sequence data across four loci of both mitochondrial (coi, atp6-nad4) and nuclear (hi ... | 2016 | 27593164 |
new species of cheiracanthium (araneae: eutichuridae) from madagascar and the comoros islands. | the afrotropical representatives of the spider genus cheiracanthium c.l. koch, 1839 from madagascar and the comoros islands are revised, and new species are described. five described species are recognized: c. africanum lessert, 1921, c. furculatum karsch, 1879, c. insulare (vinson, 1863), c. leucophaeum simon, 1896, and c. ludovici lessert, 1921. the internal genitalia of the female of c. insulare, and the female of c. ludovici, are described for the first time. thirteen new species, c. ambrens ... | 2014 | 25283111 |
[malaria diagnosis and treatment in a rural health centre in mayotte (comoro archipelago, 2002)]. | with a marked increase in both morbidity and mortality, as well as a high level of resistance to chloroquine (cq), malaria is once again a major public health problem in mayotte, a french overseas territory in the comoro archipelago. the object of this study is to assess the contribution in the field of two new antimalarial fight steps taken in 2001-2002: the use of the rapid diagnostic test (rdt) for malaria optimal in the rural health centres and the drop of the cq alone for the simultaneous a ... | 2006 | 15217738 |
hidden diversity of nycteribiidae (diptera) bat flies from the malagasy region and insights on host-parasite interactions. | we present information on nycteribiidae flies parasitizing the bat families pteropodidae, miniopteridae and vespertilionidae from the malagasy region, contributing insight into their diversity and host preference. | 2017 | 29284533 |