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Welcome to NARMS Now: Human Data, an interactive tool from CDC that contains antibiotic resistance data from bacteria isolated from humans as part of the National Antimicrobial Resistance Monitoring System (NARMS). NARMS Now: Human Data makes it easier and quicker to find out how antibiotic resistance has changed over the past 20 years for four bacteria transmitted commonly through food—Campylobacter, E. coli O157, Salmonella, and Shigella. Get started by filling in the search options below or scroll down the page to download NARMS data.
Select a view: Dashboard Tabular

Set your search above, then press play to see changes in resistance over time:

Not a participating state
No isolates tested
Percentage Resistant

Percentage resistant
95% confidence interval (CI)

Quick Stats (based on current search)
Total Salmonella Typhi isolates tested
Total resistant to nalidixic acid
 Please read this disclaimer before using these data.
Note: Downloadable isolate-level data are not available from all states.
Data current as of July 17, 2016.