intermediate susceptibility to ciprofloxacin among salmonella enterica serovar typhi isolates in lima, peru. | thirty-three salmonella enterica serovar typhi blood isolates from lima, peru (2008 to 2012), were fully susceptible to trimethoprim-sulfamethoxazole, chloramphenicol, ceftriaxone, and tetracycline; 8/33 (24.2%) showed intermediate susceptibility to ciprofloxacin carrying mutations in the quinolone resistance-determining region of the gyra gene (ser83-phe and asp87-asn) and in the gyrb gene (ser464-phe). | 2014 | 24371234 |