| antimicrobial susceptibilities of shigellae isolated in houston, texas, in 1974. | one hundred seventy-three strains of shigellae (113 shigella sonnei, 56 s. flexneri, and four others) isolated in houston during 1974 were tested for susceptibility to commonly used and newer antimicrobial agents. forty-five percent of s. sonnei strains were susceptible to ampicillin, whereas 93% of s. flexneri strains were susceptible to that agent. s. sonnei and s. flexneri strains were equally susceptible to tetracycline (35 and 33%, respectively). all 173 strains were uniformly susceptible t ... | 1976 | 1267426 |
| an outbreak of shigellosis associated with the consumption of raw oysters. | we describe an outbreak of shigella sonnei infection among 24 persons who had eaten raw oysters in restaurants in southeastern texas within five days before the onset of symptoms. the oysters in all eight restaurants were supplied by the same dealer, but examination of a routine water sample collected six days before the probable time of contamination showed the waters where the oysters were harvested to be free of fecal contamination, making widespread sewage contamination unlikely. the suspect ... | 1989 | 2664513 |
| a shigellosis outbreak traced to commercially distributed shredded lettuce. | in the period august 30-october 7, 1986, 347 persons in adjacent west texas counties (ector and midland) contracted culture-confirmed shigella sonnei gastroenteritis. a case-control study showed an increased risk of acquiring shigellosis in ector county with eating at outlets of fast-food restaurant a, and in midland county with eating at restaurant b or c. a second case-control study, of persons who had eaten at ector county outlets of restaurant a, showed an increased risk of acquiring shigell ... | 1988 | 3057879 |
| multiply resistant shigellosis in a day-care center--texas. | | 1986 | 3097494 |
| contaminated produce--a common source for two outbreaks of shigella gastroenteritis. | simultaneous outbreaks of shigella sonnei gastroenteritis occurred in october 1983 at two texas university campuses 60 miles (96 km) apart. there were no common food handlers, recreational activities, water sources or swimming areas to explain the introduction of shigella at both campuses. however, tossed salads were found to be associated with illness at both campuses. the investigation disclosed that both schools had received produce shipments from the same company during the week preceding th ... | 1986 | 3524201 |
| leads from the mmwr. multiply resistant shigellosis in a day-care center--texas. | | 1987 | 3540326 |
| colicin typing as an epidemiological tool in the investigation of outbreaks of shigella sonnei. | shigella sonnei has become the most frequently reported cause of shigellosis in the united states. since shigella subgroup d has no other serotypes, colicin production has been used as a basis for differentiating and identifying epidemiologically related strains. the results of colicin typing 115 cultures of s. sonnei from eight outbreaks of shigellosis occurring in widely separated regions of the united states support the usefulness of this technique. in each outbreak, the cultures were either ... | 1971 | 4924995 |