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  • Title: Serotype distribution and antimicrobial resistance of invasive and non-invasive pneumococccal isolates in Asturias, Spain.
    Author: García-Suárez Mdel M, Villaverde R, Caldevilla AF, Méndez FJ, Vázquez F.
    Journal: Jpn J Infect Dis; 2006 Oct; 59(5):299-05. PubMed ID: 17060695.
    Abstract:
    Streptococcus pneumoniae susceptibility to 12 antimicrobial agents was assessed using isolates collected from patients with invasive and non-invasive infections in a Spanish medical center. Two hundred and thirty-six invasive and 478 non-invasive pneumococcal isolates obtained between 1998 and 2004 were tested. Penicillin non-susceptible isolates were more likely to exhibit resistance to cephalosporins, macrolides, chloramphenicol, and tetracycline when compared to penicillin-susceptible isolates. Penicillin resistance was present in 8.1% of the invasive and 18.6% of the non-invasive isolates. Overall, antimicrobial resistance was greater in non-invasive versus invasive isolates in adults. Serogroups included in the 7-valent and 23-valent formulation accounted for approximately 92.8 and 88.3% of the invasive isolates in children 2 years old or younger and the elderly, respectively. The proportion of isolates not susceptible to penicillin, erythromycin, and/or tetracycline decreased significantly over the surveillance period. Local epidemiological data assisted in the clinical determination of treatment protocols and effective prevention strategies.
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