Biomedical subjects
Publications and source records attributed to M Duchassin.
The authors report a study about the investigations of N. gonorrhoeae in 1 742 samples from genital. Epidemiological aspects and the prevalence of gonococcal infections are precised: 10% in vulvovaginitis; 73% in acute anterior urethritis.
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Filteen new serotypes of Salmonella belonging to the sub-genus I have been isolated in Africa. Isolated in Ivory Coast: S. dabou (8,20:Z4,Z23,l,W), S. elokate (9,12:c:1,7), S. assinie (3,10:1,w:Z5), S. anna (13,23:Z35:e,n,Z16), S. mpouto (16:m,t:-), S. banco (28:r:1,7), S. abidjan (38:b:l,w); in Senegal: S. bignona (17:b:e,n,Z15), S. lode (17:r:1,2), S. derkle (52,e,h:1,7); in Tchad: S. moussoro (1,6,14,25:i:e,n,Z15), S. drogana (1,4,12,27:r,i:e,n,Z15); in Algeria: S. hydra (21:c:1,6); in Haute-Volta S. farakan (28:Z10:1,5); in Republique Centrafricaine: S. babili (28:Z35:1,7).
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The authors relate the results of a bacteriological investigation carried out among the people of four villages from Abidjan outskirts (about 1,704 inhabitants). They searched for individuals expelling Salmonellas from their faeces. This investigation, which lasted a year enabled, out of 1,754 cultures to isolate 109 strains belonging to various serotypes, four new ones among them. The isolations frequency increases with the rainy season, and has been especially important in one of the villages. Animals expell Salmonellas from their dejections, in a high percentage of cases.
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A research based on the analysis of 479 coprocultures , allow the isolation of 22 strains of Aeromonas hydrophila. The epidemiological aspects, the contamination processes through water, food... and the enteropathogenic role of these Aeromonas are discussed. These bacteria seen responsible of digestive disturbances from simple gastric discomfort (nausea, light abdominal pain...) to the actual choleriform syndrome. The isolation of 7 strains from the environment (water from lagune , wells; lagune crabs) allow to suspect the role played by the seasonal variations of the lagune salinity in the development of the germ; this allow to drawn the following conclusions: the reduction of the rate of water salinity promotes the multiplication of Aeromonas and increase the risk of human contamination.
An observation of a case of choleriform syndrome of the Aeromonas hydrophila subspecies anaerogenes biotype II is reported. In a country dealing with a severe comma bacillus under endemo -sporadic from, the case report here could be wrongly diagnosed as cholera.
Two clinical forms: choleriform syndrome and gastro enteritis came be individualised. The geographical origin of these cases (the coastal region Abidjan) as well as some samples issued aquatic milieu enable to point out some modes of human contamination.