About the National Data
Baseline: 9.3 percent of nontyphoidal Salmonella infections in humans were resistant to 3 or more drug classes in 2016-18
Target: 9.3 percent
Public health laboratories in 50 state and 4 local health departments forward every 20th nontyphoidal Salmonella isolate that they receive from clinical laboratories to NARMS at CDC. CDC scientists test isolates for susceptibility to antimicrobial agents representing nine or more drug classes using a broth microdilution method and interpret results using criteria from the Clinical and Laboratory Standards Institute (CLSI) when available.
In 2023, the baseline and target were changed from 10.6 in 2015-2017 to 9.3 in 2016-2018 to align the baseline year range with the other Food Safety Topic Area objectives.