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Emergence of Multi Drug-Resistant Salmonella Anatum in Taiwan

05/09/2019

Epidemiologic surveillance in Taiwan demonstrated a sharp rise in the isolation of Salmonella Anatum from human patients and chicken carcasses from 2015 through 2017. Concurrently Salmonella Stanley and S. Agona remained constant in prevalence. In 2011, a new strain of Salmonella Anatum was identified. This strain was generally susceptible to most antibiotics. The increase in Salmonella Anatum infections after 2015 were associated with multiple drug-resistant strains. These isolates carried blaDHA-1 encoding for resistance to beta lactamase including third-generation cephalosporins. This gene is located on a plasmid which can be transferred to E.coli and other potential pathogens restricting the range of antibiotics which can be used for treatment.

*Chiou, C-S, et. al. New multi drug-resistant Salmonella Enteriga serovar anatum clone Taiwan 2015-2017, Emerging Infectious Diseases 25:144-147