Brasil
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Clonally related penicillin-nonsusceptible Streptococcus pneumoniae serotype 14 from cases of meningitis in Salvador, Brazil.
Registro en:
KO, A.I. et al. Clonally related penicillin-nonsusceptible Streptococcus pneumoniae serotype 14 from cases of meningitis in Salvador, Brazil. Clinical Infectious of Diseases, v. 30, n. 1, p. 78-86, jan. 2000.
1058-4838
Autor
Ko, Albert Icksang
Reis, Joice Neves
Coppola, Steven J
Gouveia, Edilane Lins
Cordeiro, Soraia Machado
Lôbo, Tatiana Silva
Pinheiro, Ricardo M
Salgado, Kátia M
Dourado, Cibele Maria Ribeiro
Tavares Neto, José
Rocha, Heonir
Reis, Mitermayer Galvão dos
Johnson Junior, Warren D
Riley, Lee Woodland
Resumen
Active hospital-based surveillance in the city of Salvador, Brazil, from December 1995 through October 1998, identified 221 patients with confirmed pneumococcal meningitis. Of these 221 patients, 29 (13%) had isolates with intermediate-level resistance to penicillin. Infection with these penicillin-nonsusceptible isolates was significantly associated with age of <2 years (P<.0019), previous antibiotic use (P<.0006), and coresistance to trimethoprim-sulfamethoxazole (P<.0000). Serotype 14 was the most prevalent serotype (55.2%) of penicillin-nonsusceptible isolates. Strain typing by repetitive element BOX polymerase chain reaction (PCR) analysis showed that penicillin-nonsusceptible serotype 14 isolates had closely related BOX PCR patterns, whereas penicillin-susceptible serotype 14 isolates each had distinct, unrelated patterns. Penicillin-nonsusceptible serotype 14 isolates from Salvador and other Brazilian cities had similar BOX PCR patterns. These observations indicate that in Brazil a large proportion of cases of penicillin-nonsusceptible pneumococcal meningitis appear to be caused by a closely related group of serotype 14 strains that may have disseminated to widely separate geographic areas.
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