PER-1 is still widespread in Turkish hospitals among Pseudomonas aeruginosa and Acinetobacter spp.


  • Edited by R.A. Bonomo

*Corresponding author. Present address: KOU Tip Fakultesi, Sopali Ciftligi, Derince 41900, Kocaeli, Turkey. Tel.: +90 262 2235981/1138; fax: +90 262 2235461., E-mail address:


PER-1 type β-lactamases were screened among ceftazidime-resistant clinical isolates of Acinetobacter spp. and Pseudomonas aeruginosa. A total of 176 non-repetitive isolates (84 Acinetobacter spp. and 92 P. aeruginosa) were collected during a three month surveillance period. Isolates were obtained from seven intensive care units of seven university hospitals. All strains were screened for blaPER-1 alleles by PCR. Of the strains, 31% and 55.4% of Acinetobacter spp. and P. aeruginosa were positive for blaPER-1 type genes, respectively.