The National Institute of Communicable Diseases (NICD), Delhi, India, conducts a laboratory-based surveillance of cholera cases referred from the Infectious Disease Hospital, Delhi. The prevalence and antimicrobial susceptibilities of Vibrio cholerae O1, O139, and others, isolated from cholera patients for nine years, were analyzed to determine the changing trends in their isolation and drug-re...

The isolates of Vibrio cholerae (Vc) non-O1 from the Sudanese outbreak in 1968 produce an enterotoxin similar to cholera toxin (CT) of Vc O1. However, we have observed that the subunit B of CT purified from a Sudanese isolate (strain $7) was a larger oligomer than that of Vc O1 (Yamamoto et al., 1983). This larger oligomer formation was suggested to be due to difference in the subunit B from CT...

The high mortality of nosocomial infections caused by Klebsiella spp. has acted as a stimulus to develop immunotherapeutic approaches targeted against surface molecules of these bacteria. Since O-antigen-specific antibodies may add to the protective effect of K antisera, we tested the functional and binding capacity of O-antigen-specific monoclonal antibodies (MAbs) raised against different Kle...

Escherichia coli strains belonging to serogroups O1 and O2 are frequently associated with human infections, especially extra-intestinal infections such as bloodstream infections or urinary tract infections. These strains can be associated with a large array of flagellar antigens. Because of their frequency and clinical importance, a reliable detection of E. coli O1 and O2 strains and also the f...

background: epidemic and endemic cholera is a major public health problem for many   countries. aim of this study was to evaluate ap-pcr for investigation of clonal relatedness among the strains of vibrio cholerae recovered from an out­break occurred in different parts of iran in 2005. methods: the study was conducted during the cholera outbreak occurred in some of provinces in iran in summer 2...

Vibrio cholerae is an autochthonous inhabitant of riverine and estuarine environments and also is a facultative pathogen for humans. Genotyping can be useful in assessing the risk of contracting cholera, intestinal, or extraintestinal infections via drinking water and/or seafood. In this study, environmental isolates of V. cholerae were examined for the presence of ctxA, hlyA, ompU, stn/sto, tc...

There was an inexplicable upsurge in the incidence of non-O1, non-O139 Vibrio cholerae among hospitalized patients admitted to the Infectious Diseases Hospital, Calcutta, India, between February and March 1996. Of the 18 strains of V. cholerae isolated during this period, 15 belonged to the non-O1, non-O139 serogroups (4 belonged to O144, 3 belonged to O11, 1 each belonged to O6, O8, O12, O19, ...

Biochemical and physiological traits of a collection of strains of Vibrio cholerae O139 Bengal isolated from India, Bangladesh, and Thailand showed that these strains formed a phenotypically homogeneous group with identical characteristics that were essentially similar to those of the O1 serogroup. Resistance to 150 micrograms of the vibriostatic agent O/129 (2,4-diamino-6,7-diisopropylpteridin...