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  1. The National Antimicrobial Resistance Monitoring System

NARMS Interim Data Updates

What are NARMS Interim Data Updates?

NARMS interim data updates provide a summary of recent unusual or concerning antimicrobial resistance findings in enteric bacteria found through surveillance of retail meats. These updates are based upon using whole-genome sequence (WGS) analysis to screen for bacterial genes associated with resistance to one or more medically important antibiotics. Findings that would lead to a data update include but are not limited to

  1. Resistance to antimicrobials typically used to treat infections in humans (e.g., ceftriaxone and ciprofloxacin for treatment of severe Salmonella infections),
  2. Resistance to antimicrobials used as last-resort treatments (e.g., colistin), and
  3. Emergence of extensively drug-resistant clones.

NARMS interim data updates do not serve as notice of product recalls, alerts, or outbreaks of foodborne illness. Information about these events can be found at 

  1. USDA-FSIS Recalls & Alerts
  2. CDC Foodborne Outbreaks
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