Infectious Diarrhea

Infectious diarrhea refers to diarrhea known or suspected to result from infection and is treated in the literature as a clinical syndrome rather than a single-pathogen entity ^[2]. The available guidance is intended for healthcare professionals caring for children and adults with suspected or confirmed infectious diarrhea ^[1]. The provided sources do not supply a more specific etiologic definition beyond this infection-associated characterization ^[1][2].

The reviewed literature notes that infectious diarrhea can present with acute, chronic, and post-infectious manifestations, and that both intestinal and extra-intestinal involvement may occur ^[2]. Acute infectious diarrhea is described as a common disease in pediatric age ^[3]. The sources also indicate that clinical management is influenced by strain- and indication-specific considerations when probiotics are discussed, but they do not provide a fuller symptom inventory in the supplied text ^[3]. Source-backed detail on severity stratification, dehydration, blood in stool, or other named complications is not yet available ^[2][3].

The available sources characterize infectious diarrhea as a condition with updated epidemiology and etiologies requiring attention to both individual and community disease burden ^[2]. Acute infectious diarrhea is described as one of the most common diseases in pediatric age and as carrying relevant burden in both high- and low-income countries ^[3]. The sources also note the role of diagnostics in public health surveillance and mention emerging antimicrobial resistance as a continuing concern ^[2]. Specific geographic hotspots, outbreak settings, or reservoir distributions are not detailed in the provided material ^[2][3].

The provided sources do not describe a specific transmission route or exposure mechanism for infectious diarrhea ^[1][2][3]. They do indicate that the syndrome is infection-related and that the surrounding literature considers epidemiology, etiologies, and surveillance implications, but no source-backed route such as fecal-oral spread is explicitly stated in the supplied text ^[1][2]. Source-backed detail on persistence in the environment, person-to-person spread, or food- and water-related exposure is not yet available ^[1][2].

The sources specifically mention children, adults with suspected or confirmed infectious diarrhea, and pediatric populations as groups addressed in clinical guidance and reviews ^[1][3]. Acute infectious diarrhea is described as particularly common in pediatric age ^[3]. The literature also refers to at-risk populations in the context of preventive probiotic use, but does not define those groups in the provided text ^[3]. Source-backed detail on immunocompromised persons, travelers, or other specific high-risk groups is not yet available ^[1][3].

The supplied material does not provide detailed infection prevention and control recommendations for infectious diarrhea ^[1]. One review states that selected probiotic strains in appropriate doses are strongly recommended by guidelines for treatment of childhood acute infectious diarrhea, while prevention evidence is described as questionable in healthy populations and stronger in at-risk settings ^[3]. The same source reports consistent evidence for prevention of hospital-acquired diarrhea, but notes that evidence for prevention in day-care centers and communities is lacking ^[3]. Beyond these statements, source-backed preventive guidance is not yet available ^[1][3].

In surveillance contexts, infectious diarrhea should be read as a broad syndrome encompassing multiple etiologies and clinical courses, including acute, chronic, and post-infectious presentations ^[2]. The literature highlights both clinical care and public health surveillance roles for molecular-based and culture-based diagnostics ^[2]. Because the provided sources do not specify a single pathogen, case definition, or reporting threshold, monitoring should be interpreted cautiously and anchored to locally available surveillance criteria ^[1][2].

1. 1 Shane AL et al. 2017 Infectious Diseases Society of America Clinical Practice Guidelines for the Diagnosis and Management of Infectious Diarrhea. Clin Infect Dis. 2017 Nov 29. PMID: 29053792. doi: 10.1093/cid/cix669. PubMed: https://pubmed.ncbi.nlm.nih.gov/29053792/
2. 2 Shane AL et al. State-of-the-Art Review: Infectious Diarrhea. Clin Infect Dis. 2025 Dec 24. PMID: 41437889. doi: 10.1093/cid/ciaf356. PubMed: https://pubmed.ncbi.nlm.nih.gov/41437889/
3. 3 Poeta M et al. Acute Infectious Diarrhea. Adv Exp Med Biol. 2024. PMID: 39060736. doi: 10.1007/978-3-031-58572-2_9. PubMed: https://pubmed.ncbi.nlm.nih.gov/39060736/
4. 4 Infectious Diarrhea. Textbook of Natural Medicine. 2013. doi: 10.1016/b978-1-4377-2333-5.00178-4. DOI: https://doi.org/10.1016/b978-1-4377-2333-5.00178-4
5. 5 Infectious Diarrhea. Journal of Pediatric Gastroenterology and Nutrition. 1990. doi: 10.1002/j.1536-4801.1990.tb09990.x. DOI: https://doi.org/10.1002/j.1536-4801.1990.tb09990.x
6. 6 Infectious Diarrhea. GI Epidemiology. 2007. doi: 10.1002/9780470692189.ch26. DOI: https://doi.org/10.1002/9780470692189.ch26

ICD-10

A09

ICD-11

1A11

Total cases

30.5M

Total deaths

320

Peak month

2025-03

Coverage

3 reporting countries · 2000-01-01 → 2026-06-20