Clonal relationships among high-level penicillin-resistant Streptococcus pneumoniae in the United States.
During the past 6 to 7 years, the problem of antimicrobial resistance in Streptococcus pneumoniae has grown dramatically in the United States. Currently, approximately 26.5% of pneumococcal isolates express intermediate levels of resistance to penicillin; approximately 17.5% are highly penicillin resistant. We studied whether clonal relationships exist among current isolates of high-level penicillin-resistant S. pneumoniae (PRSP) in the United States. One hundred forty-seven PRSP isolates rec...Expand abstract
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- Clinical infectious diseases : an official publication of the Infectious Diseases Society of America
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