| an epidemic of cholera due to vibrio cholerae o139 in dhaka, bangladesh: clinical and epidemiological features. | we describe the disease spectrum and socio-demographic and epidemiological features of an epidemic of cholera due to a new pathogen, vibrio cholerae o139, in patients attending a very large hospital in the metropolitan city of dhaka, bangladesh. this hospital treats 70,000-90,000 patients a year with diarrhoeal diseases. a 4% systematic sample of 1854 patients attending from january to april 1993 were studied. five hundred and two (27%) of the 1854 patients were culture positive for v. cholerae ... | 1994 | 8005212 |
| changing epidemiology of cholera due to vibrio cholerae o1 and o139 bengal in dhaka, bangladesh. | at the international centre for diarrhoeal disease research, bangladesh (icddr, b) dhaka we studied the trends in cholera for the period january 1992 to may 1995. vibrio cholerae o139 bengal emerged as a second aetiologic agent of cholera in dhaka in january 1993. in 1993, the majority of cholera cases was due to v. cholerae o139, with v. cholerae o1 accounting for a small proportion of cases. during the latter part of the study period (jan 1994-may 1995), v. cholerae o1 re-emerged as the predom ... | 1996 | 8666070 |
| molecular analysis of toxigenic vibrio cholerae o139 bengal strains isolated in bangladesh between 1993 and 1996: evidence for emergence of a new clone of the bengal vibrios. | vibrio cholerae o139 bengal emerged in 1992 and rapidly spread in an epidemic form, in which it replaced existing strains of v. cholerae o1 in bangladesh during 1992 and 1993. the subsequent emergence of a new clone of v. cholerae o1 of the el tor biotype that transiently displaced the o139 vibrios during 1994 to 1995 and the recent reemergence of v. cholerae o139 and its coexistence with the el tor vibrios demonstrated temporal changes in the epidemiology of cholera in bangladesh. we studied cl ... | 1997 | 9276406 |
| heterogeneity in the organization of the ctx genetic element in strains of vibrio cholerae o139 bengal isolated from calcutta, india and dhaka, bangladesh and its possible link to the dissimilar incidence of o139 cholera in the two locales. | after a lapse of 33 months, vibrio cholerae o139, the new serogroup associated with cholera, has re-emerged in calcutta, india and has become the dominant serogroup causing cholera from september 1996. in neighbouring bangladesh, v. cholerae o1 biotype el tor continues to be the dominant cause of cholera with the o139 serogroup accounting for only a small proportion of cases. comparison of the phenotypic traits of representative o139 strains from calcutta and dhaka isolated between december 1996 ... | 1998 | 9514639 |
| [bacteriological survey of diarrheal epidemics in the 1998 bangladesh floods]. | in 1998, the worst flood disaster in bangladesh ravaged more than half of its land and diarrheal epidemics broke out. we examined fecal specimens of diarrheal patients at rural hospitals in chandpor district located 140 km southeast of dhaka to analyze the enteric bacterial pathogens in post-flood period october. of the 76 patients stools examined, vibrio cholerae o1 biotype el tor, serotype ogawa, and vibrio cholerae o139 bengal were detected in 25 (33%) and in 14 (18%) respectively. other ente ... | 1999 | 10535267 |
| reemergence of epidemic vibrio cholerae o139, bangladesh. | during march and april 2002, a resurgence of vibrio cholerae o139 occurred in dhaka and adjoining areas of bangladesh with an estimated 30,000 cases of cholera. patients infected with o139 strains were much older than those infected with o1 strains (p<0.001). the reemerged o139 strains belong to a single ribotype corresponding to one of two ribotypes that caused the initial o139 outbreak in 1993. unlike the strains of 1993, the recent strains are susceptible to trimethoprim, sulphamethoxazole, a ... | 2003 | 14519249 |
| a comparison of clinical and immunologic features in children and older patients hospitalized with severe cholera in bangladesh. | : infection with vibrio cholerae induces protection from subsequent severe disease, suggesting that an effective vaccine could be an important preventive strategy. available vaccines provide less protection against cholera than natural infection, particularly in children. | 2008 | 18833030 |
| relatedness of vibrio cholerae o1/o139 isolates from patients and their household contacts, determined by multilocus variable-number tandem-repeat analysis. | the genetic relatedness of vibrio cholerae o1/o139 isolates obtained from 100 patients and 146 of their household contacts in dhaka, bangladesh, between 2002 and 2005 was assessed by multilocus variable-number tandem-repeat analysis. isolate genotypes were analyzed at five loci containing tandem repeats. across the population, as well as within households, isolates with identical genotypes were clustered in time. isolates from individuals within the same household were more likely to have simila ... | 2010 | 20585059 |