We investigated an October 2014 outbreak of illness caused by Shigella sonnei in a daycare center in the Republic of Korea (South Korea). The outbreak strain was resistant to extended-spectrum cephalosporins and fluoroquinolones and was traced to a child who had traveled to Vietnam. Improved hygiene and infection control practices are needed for prevention of shigellosis.
Keywords: CTX-M-15; ESBL; Enterobacteriaceae; Shigella sonnei; South Korea; Vietnam; antibiotic drugs; antimicrobial resistance; bacteria; cephalosporins; ciprofloxacin; drug resistance; enteric infections; fluoroquinolones; shigellosis; travel-related infections.