| isolation of enterotoxigenic vibrio cholerae non-01 from the buriganga river and two ponds of dhaka, bangladesh. | vibrio cholerae 01 is usually considered the most toxigenic member of the vibrionaceae and v. cholerae non-01 isolated from the environment is non-toxigenic. in our survey of the pollution of some aquatic environments in and around dhaka, bangladesh, we wanted to investigate the toxigenicity of v. cholerae non-01 isolated from water and sediment samples of the buriganga river and two ponds in dhaka, in the rabbit ileal loop (ril) model. fluid accumulation was induced by 18 of 28 live cultures an ... | 1992 | 1296941 |
| clonal relationships among classical vibrio cholerae o1 strains isolated between 1961 and 1992 in bangladesh. | in bangladesh, the replacement of classical vibrio cholerae by the e1 tor biotype in 1968 and the reappearance of the classical biotype and its coexistence with the e1 tor biotype after 1982 were never adequately explained. we have analyzed 23 classical v. cholerae isolates collected between 1961 and 1968, 14 classical isolates collected between 1982 and 1992 from the capital city, dhaka, and 6 classical v. cholerae isolates collected from two southern districts of bangladesh and studied restric ... | 1993 | 7691878 |
| 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 |
| aetiological, clinical and epidemiological characteristics of a seasonal peak of diarrhoea in dhaka, bangladesh. | during the spring peak of diarrhoea in bangladesh, 113 consecutive patients who represented a systematic 4% sample of all patients attending an urban diarrhoea treatment facility between 18 and 23 april 1995 were studied. the study was conducted to characterize enteric pathogens associated with the spring peak of the diarrhoea outbreak in bangladesh and to describe clinical and epidemiological features of the patients. the spring peak is traditionally thought to be mostly due to v. cholerae o1. ... | 1998 | 9817521 |
| case-control study of enteropathogens associated with childhood diarrhea in dhaka, bangladesh. | the international centre for diarrhoeal disease research, bangladesh, is a major center for research into diarrheal diseases. the center treats more than 100,000 patients a year. to obtain useful information representative of all patients, a surveillance system in which a 4% systematic sample of all patients is studied in detail, including etiological agents of diarrhea, was installed in october 1979. the first paper on etiology for the surveillance patients was published in 1982, which identifi ... | 1999 | 10523534 |
| [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 |
| enterotoxigenic escherichia coli and vibrio cholerae diarrhea, bangladesh, 2004. | flooding in dhaka in july 2004 caused epidemics of diarrhea. enterotoxigenic escherichia coli (etec) was almost as prevalent as vibrio cholerae o1 in diarrheal stools. etec that produced heat-stable enterotoxin alone was most prevalent, and 78% of strains had colonization factors. like v. cholerae o1, etec can cause epidemic diarrhea. | 2005 | 16022790 |
| prediction of epidemic cholera due to vibrio cholerae o1 in children younger than 10 years using climate data in bangladesh. | to determine if a prediction of epidemic cholera using climate data can be made, we performed autoregression analysis using the data recorded in dhaka city, bangladesh over a 20-year period (1983-2002) comparing the number of children aged <10 years who were infected with vibrio cholerae o1 to the maximum and minimum temperatures and rainfall. we formulated a simple autoregression model that predicts the monthly number of patients using earlier climate variables. the monthly number of patients p ... | 2008 | 17346360 |
| 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 |
| shifting prevalence of major diarrheal pathogens in patients seeking hospital care during floods in 1998, 2004, and 2007 in dhaka, bangladesh. | bangladesh experienced severe flooding and diarrheal epidemics in 2007. we compared flood data from 2007 with 2004 and 1998 for diarrheal patients attending the icddr,b hospital in dhaka. in 2007, vibrio cholerae o1 (33%), rotavirus (12%), and enterotoxigenic escherichia coli (etec) (12%) were most prevalent. more severe dehydration was seen in 2007 compared with 2004 and 1998 (p < 0.001). in 2007, v. cholerae o1 inaba (52%) and ogawa (48%) were seen, whereas in 2004 and 1998 it was primarily in ... | 2008 | 18981509 |
| 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 |
| impact of rapid urbanization on the rates of infection by vibrio cholerae o1 and enterotoxigenic escherichia coli in dhaka, bangladesh. | in bangladesh, increases in cholera epidemics are being documented with a greater incidence and severity. the aim of this prospective study was to identify the prevalence and importance of v. cholerae o1 and enterotoxigenic escherichia coli (etec) as causal agents of severe diarrhea in a high diarrhea prone urban area in dhaka city. | 2011 | 21483709 |
| comparison of memory b cell, antibody-secreting cell, and plasma antibody responses in young children, older children, and adults with infection caused by vibrio cholerae o1 el tor ogawa in bangladesh. | children bear a large component of the global burden of cholera. despite this, little is known about immune responses to cholera in children, especially those under 5 years of age. cholera vaccine studies have demonstrated lower long-term protective efficacy in young children than in older children and adults. memory b cell (mbc) responses may correlate with duration of protection following infection and vaccination. here we report a comparison of immune responses in young children (3 to 5 years ... | 2011 | 21697337 |