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5. Jacobs MR, Bajaksouzian S, Lin G, Appelbaum PC: Variation in antimicrobial resistance of community isolates of Streptococcus pneumoniae by age, region and disease [abstract]. 38th Interscience Conference on Antimicrobial Agents and Chemotherapy; September 1998:C-016. Currently 17% of community isolates of pneumococci are penicillinintermediate, 33% are pencillin-resistant, and 30% are macrolide-resistant. Resistance rates are highest in children under 2 years of age, and in isolates from ear, sinus, and nasopharyngeal specimens.