| cholera on guam, 1974: epidemiologic findings and isolation of non-toxinogenic strains. | in august 1974, six cases of cholera occurred on guam. the index case had severe diarrhea and metabolic acidosis and died from pneumonia on the ninth day of illness; the other five cases had only mild to moderate diarrhea. fish caught in agana bay and home-preserved was found to be the vehicle most likely responsible for the cases. vibrio cholerae, el tor ogawa, was isolated from two patients, the guam sewerage system, and a river emptying into agana bay. v. cholerae, el tor inaba, was isolated ... | 1977 | 848485 |
| nag vibrio cholerae isolated from imported shellfish in guam. | a survey of imported shellfish available in public markets on the island of guam revealed the presence of nag vibrio cholerae contamination (10 of 38 sample lots positive) and high coliform counts (21 of 33 sample lots in excess of 2400 per 100 grams). nag v. cholerae contamination was associated with high coliform counts and origin in fresh or brackish waters rather than saltwater. further importation of fresh shellfish from other than approved sources was prohibited. | 1985 | 4023801 |
| lysogenicity and prophage type of the strains of vibrio cholerae o-1 isolated mainly from the natural environment. | attention has recently been given to the increasingly frequent detection of atypical vibrio cholerae o-1 in the natural environments throughout the world. lysogenicity of v. cholerae o-1, mainly isolated from environmental sources in nine areas, including the united states, was studied by electron microscopy and a cross-lysis test between bacteria and the culture supernatants. a total of 38 strains isolated in texas in 1973 and in louisiana in 1978 were lysogenic, whereas there were no lysogenic ... | 1984 | 6496453 |
| molecular characterization of environmental and nontoxigenic strains of vibrio cholerae. | environmental and nontoxigenic strains of vibrio cholerae 0-1 were examined for genes homologous to genes encoding escherichia coli heat-labile enterotoxin (lt). restriction fragments encoding lt a and b subunits were isolated from the recombinant plasmid ewd299 and labeled in vitro with 32p. these probes were then hybridized to deoxyribonucleic acid extracted from strains of v. cholerae and visualized by autoradiography. none of the nontoxigenic strains of v. cholerae 0-1 from louisiana, alabam ... | 1981 | 7251142 |
| cholera control on guam, 2000. | during april, 2000, the island of pohnpei began experiencing an outbreak of cholera and during june and july of the same year four cases of cholera representing 3 separate introduction events were identified on guam. two of these events were associated with eating reef fish imported from pohnpei. following the imposition of a narrowly-focused ban on the importation of inshore seafood and processed food products from pohnpei, no additional local or imported cases of cholera were detected on guam. | 2002 | 14736099 |
| determination of relationships among non-toxigenic vibrio cholerae o1 biotype el tor strains from housekeeping gene sequences and ribotype patterns. | sequencing of three housekeeping genes, mdh, dnae and reca, and ribotyping for seven non-toxigenic vibrio cholerae o1 strains isolated from different geographic sources indicate a phylogenetic relationship among the strains. results of mlst and ribotyping indicate a clear difference between three toxigenic strains (n16961, o395, and 569b) and three non-toxigenic strains from india (gs1, gs2, and gw87) and one guam strain (x392), the latter of which were similar in both mlst and ribotyping, while ... | 2009 | 19028569 |