Epidemiology of Invasive Pneumococcal Infection in Taiwan: Antibiotic Resistance, Serogroup Distribution, and Ribotypes Analyses
2002
From July, 1998, to June, 1999, pneumococcal isolates from 288 patients with invasive disease in Taiwan were serogrouped and tested for their susceptibility to various antibiotics. Automated ribotyping was used to study their molecular epidemiology. The mortality rate among those ≥65 years was higher than those 18 or 19-64 years (p < 0.001). The total incidence of infection was significantly higher during the cooler season than the warmer season (p = 0.017). Among strains isolated from children aged ≤18 years, 76% were not susceptible to penicillin, a rate that was significantly higher (p < 0.001) than that for adults (45%), as was the susceptibility to azithromycin, erythromycin, and trimethoprim-sulfamethoxazole (p < 0.005). The most prevalent serogroup encountered in the invasive isolates was 23, followed by 6, 14, 19, and 3. Isolation of Streptococcus pneumoniae in cerebrospinal fluid was at high rate in children under 5 years (p = 0.00012). Molecular typing revealed a high degree of polymorphism amon...
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