You are not currently logged in.
Access JSTOR through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preferential Association of the Heat-Stable Enterotoxin Gene (stn) with Environmental Strains of Vibrio cholerae Belonging to the O14 Serogroup
B. Sarkar, T. Bhattacharya, T. Ramamurthy, T. Shimada, Y. Takeda and G. Balakrishnair
Epidemiology and Infection
Vol. 129, No. 2 (Oct., 2002), pp. 245-251
Published by: Cambridge University Press
Stable URL: http://www.jstor.org/stable/3864952
Page Count: 7
You can always find the topics here!Topics: Vibrio cholerae, Enterotoxins, Cholera, Toxins, DNA, Polymerase chain reaction, Gels, Psychological stress, DNA probes, Bacteriophages
Were these topics helpful?See somethings inaccurate? Let us know!
Select the topics that are inaccurate.
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
Toxigenic Vibrio cholerae O1 and O139 serogroups have the capacity of causing epidemic and pandemic cholera but are infrequently found in the environment. The other serogroups are abundant in aquatic environments but do not possess the virulence genes necessary for causing the disease. Of the 559 environmental strains of V. cholerae, collected during different periods from environmental samples in Calcutta, 9 (1·6%) harboured the heat-stable enterotoxin gene (stn). Six of the 9 strains belonged to the O14 serogroup. Thus, V. cholerae strains carrying the stn gene revealed preferential association with the O14 serogroup. Three of the six strains harboured the tcpA gene of the E1 Tor type, which is an unusual feature among environmental V. cholerae strains. A strain that possessed the E1 Tor type tcpA also had the CTX prophage. Pulsed field gel electrophoresis (PFGE) revealed that the stn gene positive O14 strains of V. cholerae were not clonal.
Epidemiology and Infection © 2002 Cambridge University Press