Variants ofVibrio choleraeO1 El Tor from Zambia showed new genotypes ofctxB
نویسندگان
چکیده
منابع مشابه
Cholera outbreaks in the El Tor biotype era and the impact of the new El Tor variants.
Vibrio cholerae O1, the causative agent of the disease cholera, has two biotypes namely the classical and El Tor. Biotype is a subspecific taxonomic classification of V. cholerae O1. Differentiation of V. cholerae strains into biotype does not alter the clinical management of cholera but is of immense public health and epidemiological importance in identifying the source and spread of infection...
متن کاملPreselection of hemolytic variants of el tor vibrios.
Historically, hemolytic activity in tube tests was regarded as the sine qua non in the differentiation of El Tor from classical cholera vibrios. However, in the recent outbreaks of cholera in Southeast Asia, many strains of agglutinable vibrios have been isolated which share a large number of properties ascribed to El Tor vibrios (and not the classical variety), but which lack hemolytic activit...
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plicated by bilateral hearing loss with vestibular dysfunction. Preexisting medical conditions, such as alcoholism, liver cirrhosis, or splenectomy, have been described to predispose patients to severe infection and hearing loss (2). Our patient, however, did not have any predisposing conditions. Meningitis in humans caused by S. suis serotype 14 is less common than that caused by serotype 2, b...
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Vibrio cholerae O1 biotype El Tor (ET), the cause of the current 7th pandemic, has recently been replaced in Asia and Africa by an altered ET biotype possessing cholera toxin (CTX) of the classical (CL) biotype that originally caused the first six pandemics before becoming extinct in the 1980s. Until recently, the ET prototype was the biotype circulating in Peru; a detailed understanding of the...
متن کاملMolecular Insights Into the Evolutionary Pathway of Vibrio cholerae O1 Atypical El Tor Variants
Pandemic V. cholerae strains in the O1 serogroup have 2 biotypes: classical and El Tor. The classical biotype strains of the sixth pandemic, which encode the classical type cholera toxin (CT), have been replaced by El Tor biotype strains of the seventh pandemic. The prototype El Tor strains that produce biotype-specific cholera toxin are being replaced by atypical El Tor variants that harbor cl...
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ژورنال
عنوان ژورنال: Epidemiology and Infection
سال: 2011
ISSN: 0950-2688,1469-4409
DOI: 10.1017/s0950268811001944