TY - JOUR AU - Hakanen, Antti AU - Kotilainen, Pirkko AU - Huovinen, Pentti AU - Helenius, Hans AU - Siitonen, Anja T1 - Reduced Fluoroquinolone Susceptibility in Salmonella enterica Serotypes in Travelers Returning from Southeast Asia T2 - Emerging Infectious Disease journal PY - 2001 VL - 7 IS - 6 SP - 996 SN - 1080-6059 AB - During 1995 to 1999, we collected 1,210 Salmonella isolates; 629 were from Finnish travelers returning from abroad. These isolates were tested for susceptibility by determining MICs to ciprofloxacin, nalidixic acid, and seven additional antimicrobial agents. From 1995 to 1999, the annual proportion of reduced ciprofloxacin susceptibility (MIC > 0.125 µg/mL) among all travelers' isolates increased from 3.9% to 23.5% (p<0.001). The increasing trend was outstanding among the isolates from Southeast Asia; isolates from Thailand alone increased from 5.6% to 50.0% (p<0.001). The reduced fluoroquinolone susceptibility was nonclonal in character and significantly associated with multidrug resistance. A point mutation in the quinolone resistance-determining region of gyrA was present in all isolates with reduced susceptibility. These data provide further evidence for the rapid spread of multidrug-resistant pathogens from one continent to another. KW - fluoroquinolone KW - Salmonella enterica KW - south east asia KW - multidrug resistance KW - gyrA KW - Finland DO - 10.3201/eid0706.010613 UR - https://wwwnc.cdc.gov/eid/article/7/6/01-0613_article ER - End of Reference