Firdausi Qadri, Ann–Mari Svennerholm, Shah M. Faruque, R. Bradley Sack
ETEC is an underrecognized but extremely important cause of diarrhea in the developing world where there is inadequate clean water and poor sanitation. It is the most frequent bacterial cause of diarrhea in children and adults living in these areas and also the most common cause of traveler's diarrh...
Craig Baker‐Austin, James D. Oliver, Munirul Alam, Afsar Ali et al.
Vibrio is a genus of ubiquitous bacteria found in a wide variety of aquatic and marine habitats; of the >100 described Vibrio spp., ~12 cause infections in humans. Vibrio cholerae can cause cholera, a severe diarrhoeal disease that can be quickly fatal if untreated and is typically transmitted via c...
Ibrahim A Khalil, Christopher Troeger, Brigette F. Blacker, Puja C Rao et al.
BACKGROUND: Shigella and enterotoxigenic Escherichia coli (ETEC) are bacterial pathogens that are frequently associated with diarrhoeal disease, and are a significant cause of mortality and morbidity worldwide. The Global Burden of Diseases, Injuries, and Risk Factors study 2016 (GBD 2016) is a syst...
Jason B Harris, Regina C LaRocque, Firdausi Qadri, Edward T Ryan et al.
Cholera is an acute, secretory diarrhoea caused by infection with Vibrio cholerae of the O1 or O139 serogroup. It is endemic in more than 50 countries and also causes large epidemics. Since 1817, seven cholera pandemics have spread from Asia to much of the world. The seventh pandemic began in 1961 a...
D. Scott Merrell, Susan M. Butler, Firdausi Qadri, Nadia Dolganov et al.
The factors that enhance the transmission of pathogens during epidemic spread are ill defined. Water-borne spread of the diarrhoeal disease cholera occurs rapidly in nature, whereas infection of human volunteers with bacteria grown in vitro is difficult in the absence of stomach acid buffering. It i...
Shafiqul Alam Sarker, Shamima Sultana, Gloria Reuteler, D Moine et al.
BACKGROUND: Antibiotic resistance is rising in important bacterial pathogens. Phage therapy (PT), the use of bacterial viruses infecting the pathogen in a species-specific way, is a potential alternative. METHOD: T4-like coliphages or a commercial Russian coliphage product or placebo was orally give...
John D. Clemens, G. Balakrish Nair, Tahmeed Ahmed, Firdausi Qadri et al.
Cholera is an acute, watery diarrhoeal disease caused by Vibrio cholerae of the O1 or O139 serogroups. In the past two centuries, cholera has emerged and spread from the Ganges Delta six times and from Indonesia once to cause global pandemics. Rational approaches to the case management of cholera wi...
M. Nazmul Huda, Zachery T. Lewis, Karen M. Kalanetra, Mamunur Rashid et al.
OBJECTIVE: Oral vaccine efficacy is low in less-developed countries, perhaps due to intestinal dysbiosis. This study determined if stool microbiota composition predicted infant oral and parenteral vaccine responses. METHODS: The stool microbiota of 48 Bangladeshi infants was characterized at 6, 11, ...
G. Balakrish Nair, Firdausi Qadri, Jan Holmgren, Ann–Mari Svennerholm et al.
We determined the types of cholera toxin (CT) produced by a collection of 185 Vibrio cholerae O1 strains isolated in Bangladesh over the past 45 years. All of the El Tor strains of V. cholerae O1 isolated since 2001 produced CT of the classical biotype, while those isolated before 2001 produced CT o...
Jason B. Harris, Regina C. LaRocque, Fahima Chowdhury, Ashraful Islam Khan et al.
BACKGROUND: Despite recent progress in understanding the molecular basis of Vibrio cholerae pathogenesis, there is relatively little knowledge of the factors that determine the variability in human susceptibility to V. cholerae infection. METHODS AND FINDINGS: We performed an observational study of ...
Brian Schwartz, Jason B. Harris, Ashraful Islam Khan, Regina C. LaRocque et al.
We examined demographic, microbiologic, and clinical data from patients presenting during 1988, 1998, and 2004 flood-associated diarrheal epidemics at a diarrhea treatment hospital in Dhaka, Bangladesh. Compared with non-flood periods, individuals presenting during flood-associated epidemics were ol...
Jason B. Harris, Ashraful Islam Khan, Regina C. LaRocque, David J. Dorer et al.
Individuals with blood group O are more susceptible than other individuals to severe cholera, although the mechanism underlying this association is unknown. To assess the respective roles of both intrinsic host factors and adaptive immune responses that might influence susceptibility to infection wi...
Firdausi Qadri, Amit Saha, Tanvir Ahmed, Abdullah A. Tarique et al.
A cohort of 321 children was followed from birth up to 2 years of age to determine the incidence of enterotoxigenic Escherichia coli (ETEC) in Bangladesh. The average number of diarrheal days and incidence rates were 6.6 and 2.3/child/year, respectively. ETEC was the most common pathogen and was iso...
R. Bradley Sack, Abdullah Siddique, Ira M. Longini, Azhar Nizam et al.
How Vibrio cholerae spreads around the world and what determines its seasonal peaks in endemic areas are not known. These features of cholera have been hypothesized to be primarily the result of environmental factors associated with aquatic habitats that can now be identified. Since 1997, fortnightl...
Lawrence A. David, Ana A. Weil, Edward T. Ryan, Stephen B. Calderwood et al.
UNLABELLED: Disability after childhood diarrhea is an important burden on global productivity. Recent studies suggest that gut bacterial communities influence how humans recover from infectious diarrhea, but we still lack extensive data and mechanistic hypotheses for how these bacterial communities ...