| [epidemic outbreak of acute post streptococcal glomerulonephritis]. | an outbreak of post streptococcal acute glomerulonephritis (psagn) was recorded in the south east health service (sehs) of santiago, chile, between 1984 and 1987. some aspects related to its epidemiology and natural history are discussed. this outbreak was preceded by streptococcal skin infection (ssi) in 60% of cases vs. 36% during the previous period. at the same time it was observed an increased isolation rate of group a beta hemolytic streptococci (gabhs) of skin origin, and a high prevalenc ... | 1990 | 2136682 |
| are all recurrences of "pure" sydenham chorea true recurrences of acute rheumatic fever? | we are conducting prospective studies of patients in santiago, chile, who have had an attack of rheumatic fever and are receiving continuous secondary prophylaxis with monthly injections of benzathine penicillin g. throat cultures are obtained just prior to injection each month, and serum antistreptococcal antibody titers (antistreptolysin o and antideoxyribonuclease b) are performed at least every 3 months. during the course of these studies we have observed 17 recurrences of "pure" chorea in 1 ... | 1985 | 3906071 |
| type-specific antibodies to structurally defined fragments of streptococcal m proteins in patients with acute rheumatic fever. | group a streptococci of m protein type 5 have been epidemiologically related to acute rheumatic fever in a number of reported outbreaks. preliminary bacteriological evidence suggests that m5 may be an important "rheumatogenic" type in santiago, chile. to assess further the relationship of this streptococcal serotype to rheumatic fever in chile, sera of 34 patients with rheumatic fever and an equal number of age-, sex-, and race-matched controls were assayed for antibodies to types 5, 6, and 24 i ... | 1982 | 6754620 |
| prevalence and mechanisms of macrolide resistance in streptococcus pyogenes in santiago, chile. | thirty-two macrolide-resistant streptococcus pyogenes isolates were found among 594 clinical isolates collected from 1990 to 1998 in santiago, chile, for an overall prevalence of 7.2%. among the 32 resistant isolates, 28 (87.5%) presented the m phenotype and 4 (12. 5%) presented the mls(b) phenotype. serotyping and pulsed-field gel electrophoresis analysis showed genetic diversity among the resistant isolates. | 2001 | 11120993 |
| [in vitro susceptibility patterns of bacterial species isolated in outpatients of the metropolitan región, chile, year 2007]. | a partial surveillance of bacterial in vitro susceptibility to antibiotics, performed by a outpatient clinic, at santiago, chile, during year 2007, has yielded the following results: staphylococcus aureus (n: 232) 3% of methicillin (oxacillin) resistance; streptococcus pyogenes (n: 120) 6% of macrolides resistance; haemophilus influenzae nt (n: 60) 12% of ampicillin and 3% of chloramphenicol resistance; neisseria gonorrhoeae (n: 170): 78% of penicillin, 56% of tetracyclin and 32% of ciprofloxaci ... | 2009 | 19350154 |