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Volume 2, Number 4—October 1996

Dispatch

Rapid Increase of Resistance to Erythromycin and Clindamycin in Streptococcus pyogenes in Italy, 1993-1995

Giuseppe Cornaglia*, Marco Ligozzi*, Annarita Mazzariol*, Myriam Valentini*, Graziella Orefici†, Roberta Fontana*, and ‡the Italian Surveillance Group for Antimicrobial Resistance
Author affiliations: *Institute of Microbiology, University of Verona, Italy; †National Health Institute, Rome, Italy; ‡The Italian Surveillance Group for Antimicrobial Resistance: Antonio Goglio, Cristiana Passerini Tosi, Ospedali Riuniti di Bergamo; Massimo Gallina, Panaiota Troupioti, Azienda Ospedaliera 'Morelli’, Bormio; Bruno Maranini, Riccardo Cioni, Ospedale 'San Giuseppe’ Empoli; Pierluigi Nicoletti, Laura Martelli, Azienda Ospedaliera 'Careggi', Florence, Sergio Frugoni, Amelia Berlusconi, Pio Albergo Trivulzio, Milan; Roberto Rescaldani, Simone Bramati, Ospedale 'San Gerardo', Monza; Alfredo Chiarini, Anna Giammanco, Dipartimento di Igiene e Microbiologia, Università di Palermo; Roberto Rossetti, Spedali Riuniti, Pistoia; Gianfranco Santini, Annapaola Callegaro, Ospedale Civile, Pordenone; Giovanni Fadda, Teresa Spanu, Istituto di Microbiologia, Università Cattolica del Sacro Cuore, Rome; Alessandro Maida, Elena Muresu, Bianca Maria Are, Istituto di Igiene e Medicina Preventiva, Università di Sassari; Piero Cappuccinelli, Silvana

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Table

Antibiotic susceptibilities,* presence of the ermAM gene, pulse-field gel electrophoresis type, and T-protein pattern of Streptococcus pyogenes strains isolated in Verona

Strain ERY† MIO CLI§ ermAM PFGE type T-protein pattern
VR1 R S S - A 8, 25
VR2 R S S - A 8, 25
VR3 R S S - A 25
VR4 R S S - A 8, 25
VR5 R R R + B 2, 28
VR6 R R R + C 5, 12, 27
VR7 R S S - D 4
VR8 R R R + C 12, 27
VR9 R R R + E 5, 12, 27
VR10 R R R + B 2
VR11 R R R + C 12, 27
VR13 R R R + C 5, 12, 27
VR14 R R R + C 12, 27
VR15 R R R + C 5, 12, 27

*Resistant, susceptible
†Erythromycin
‡Miokamycin
§Clindamycin

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