Stool Culture Monitoring for Non-Typhoidal Salmonella Treatment

General Principles for Monitoring NTS Infections

The Infectious Diseases Society of America recommends that follow-up stool cultures are not necessary for clinical management in most individuals following resolution of diarrhea 2
Adults with acute NTS diarrhea commonly continue to shed the organism asymptomatically for weeks after clinical recovery 3

The Centers for Disease Control and Prevention suggests that follow-up stool cultures may be required for individuals working in high-risk settings, such as healthcare workers, food service employees, and childcare providers, before returning to work 1, 2
Local public health authorities may require stool cultures to enable return to childcare, employment, or group social activities 2
The World Health Organization recommends that chronic carriers who may pose a public health risk, particularly those handling food, should undergo follow-up stool cultures 3

The American Public Health Association notes that stool cultures have significant public health importance for surveillance and outbreak detection 4
Practitioners should collaborate with local public health authorities to adhere to policies regarding return to settings where transmission is a consideration 2
Some state and local laws mandate negative stool cultures prior to resuming work in high-risk settings; in these situations, follow-up testing may be required 3

The Infectious Diseases Society of America recommends that a clinical and laboratory reevaluation may be indicated in people who do not respond to an initial course of therapy 2
Persistent symptoms beyond 14 days should prompt consideration of noninfectious conditions including inflammatory bowel disease and irritable bowel syndrome 2
Reassessment of fluid and electrolyte balance, nutritional status, and optimal dose and duration of antimicrobial therapy is recommended in people with persistent symptoms 2