Phenotypes and Genotypes of Erythromycin-Resistant Pneumococci in Italy
Open Access
- 1 January 2003
- journal article
- Published by American Society for Microbiology in Journal of Clinical Microbiology
- Vol. 41 (1) , 428-431
- https://doi.org/10.1128/jcm.41.1.428-431.2003
Abstract
Of 120 erythromycin-resistant pneumococci isolated in Italian hospitals, 39 (32.5%) were M-type isolates, carrying the mef gene alone. The mef gene was also detected, together with erm (AM), in one constitutively resistant isolate and in five isolates of the partially inducible phenotype. Among the 45 mef -positive isolates, 25 (55.6%) carried mef (A) and 20 (44.4%) carried mef (E) as observed from PCR-restriction fragment length polymorphism analysis of a 1,743-bp amplicon. The same result was obtained by a similar method applied to a more common 348-bp amplicon.Keywords
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