| progression of salmonella enteritidis phage type 4 strains in são paulo state, brazil. | a total of 574 s. enteritidis strains (383 from human sources and 191 from non-human sources) isolated between 1975-95, in são paulo state, brazil, were phagetyped. among the strains isolated during the period of 1975-92, 80.9% of them belonged to phage type 8 (pt-8), but in 1993 strains of pt-4 accounted for 65.2% of all the s. enteritidis isolates. in the following years, pt-4 strains accounted for 99.7% and 98.4% of phagetyped s. enteritidis strains. the results obtained suggested that the cu ... | 1996 | 9163983 |
| liver abscess due to salmonella enteritidis in a returned traveler with hiv infection: case report and review of the literature. | bacteremia due to non-typhi salmonella is more frequent in patients infected with the human immunodeficiency virus (hiv). however, focal complications have been rarely described. we report a case of liver abscess due to salmonella enteritidis in an hiv-infected patient who recently returned to sao paulo, brazil, from a trip in the caribbean. a good clinical and radiological response was seen with both percutaneous catheter drainage and antibiotic treatment. to our knowledge, this is the first cu ... | 2003 | 12754581 |
| salmonella serotypes isolated from nonhuman sources in são paulo, brazil, from 1996 through 2000. | a total of 4,581 salmonella strains isolated from nonhuman sources, including foodstuffs associated with foodborne salmonella outbreaks, from january 1996 through december 2000 were serotyped at the enteropathogens laboratory, instituto adolfo lutz, são paulo, brazil. among the 123 different serotypes identified, salmonella enterica subsp. enterica serotype enteritidis (salmonella enteritidis) was the most prevalent (32.7%), ranking first for almost every kind of source. the next most common ser ... | 2002 | 12092719 |
| changing patterns of salmonella serovars: increase of salmonella enteritidis in são paulo, brazil. | serovars of a total of 5,490 salmonella strains isolated during the period of 1991-95, from human infections (2,254 strains) and from non-human materials (3,236 strains) were evaluated. in the studied period, 81 different serovars were determined among human isolates. salmonella enteritidis corresponded to 1.2% in 1991, 2% in 1992, 10.1% in 1993, 43.3% in 1994, and 64.9% in 1995 of all isolates. a significant rise on the isolation of this serovar was seen since 1993 linked to food poisoning outb ... | 1996 | 9293072 |
| [food poisoning outbreak caused by salmonella enteritidis in the northwest of são paulo state, brazil]. | a foodborne outbreak which affected 211 persons occurred, in a school, in 1993. the epidemiological data obtained by interviewing the affected and non affected persons sampled showed as predominant symptoms: diarrhoea, fever (77.7%), abdominal cramps (67.7%), vomiting (65.8%), hot-and-cold sensations (54.5%) and headache (44.5%). the median incubation period was of 17 hours, the limits being 3 and 29 hours. the disease period was of from 3 to 4 days. the food concerned was a kind of paté, a mayo ... | 1995 | 8525322 |
| phenotypic and molecular characterization of salmonella enteritidis strains isolated in são paulo, brazil. | in são paulo state, brazil, the epidemic increase in isolation of salmonella enteritidis has been observed since 1994. a total of 105 s. enteritidis strains (72 from human and 33 from non-human sources) isolated during the period 1975-1995, previously characterized by phage typing, was analyzed by antimicrobial susceptibility, plasmid profile, and ribotyping. over 70% of the strains were susceptible to all antimicrobial agents tested, however, multiple resistance to antimicrobials was observed a ... | 2003 | 12754568 |