Some Clinical features of diarrhea due to common causative organisms

The clinical features due to various causative agents may overlap and may even be atypical
Following is a list of commonly seen clinical features associated with different agents.
Also, the general principles of diarrhea management are similar for most causative agents.
CLINICAL FEATURES: CHOLERA
• Rice-watery stool
• Marked dehydration
• Projectile vomiting
• No fever or abdominal pain
• Muscle cramps
• Hypovolemic shock
• Scanty urine
CLINICAL FEATURES: E. COLI (ETEC) DIARRHEA
• Watery stools
• Vomiting is common
• Dehydration moderate to severe
• Patient usually afebrile
• Mild abdominal pain
CLINICAL FEATURE: ROTAVIRUS DIARRHEA
• Insidious onset
• Prodromal symptoms, including fever, cough, and vomiting precede diarrhea
• Stools are watery or semi-liquid;
• Mild to moderate dehydration, but may become severe without treatment
• Fever– moderate grade
CLINICAL FEATURE: SHIGELLOSIS
• Frequent passage of scanty amount of stools, mostly mixed with blood and mucus
• Moderate to high grade fever
• Severe abdominal cramps
• Tenesmus– pain around anus during defecation
• Usually no dehydration
CLINICAL FEATURES: AMEBIASIS
• Gradual in onset, alternating with periods of constipation or remission.
• Offensive and bulky stools containing mostly mucus and sometimes blood
• Lower abdominal cramp
• Mild grade fever
• No dehydration

References:
K. Park, 2019. Epidemiology of Communicable Diseases, In: Park’s Textbook of Preventive and Social Medicine, 25th ed. Jabalpur, 2019
Qadri, F., Svennerholm, A. M., Faruque, A. S., & Sack, R. B. (2005). Enterotoxigenic Escherichia coli in developing countries: epidemiology, microbiology, clinical features, treatment, and prevention. Clinical microbiology reviews, 18(3), 465–483. https://doi.org/10.1128/CMR.18.3.465-483.2005
Crawford, S. E., Ramani, S., Tate, J. E., Parashar, U. D., Svensson, L., Hagbom, M., Franco, M. A., Greenberg, H. B., O'Ryan, M., Kang, G., Desselberger, U., & Estes, M. K. (2017). Rotavirus infection. Nature reviews. Disease primers, 3, 17083. https://doi.org/10.1038/nrdp.2017.83

Aslam A, Okafor CN. Shigella (Shigellosis) [Updated 2019 Nov 23]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2020 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK482337/
Hale TL, Keusch GT. Shigella. In: Baron S, editor. Medical Microbiology. 4th edition. Galveston (TX): University of Texas Medical Branch at Galveston; 1996. Chapter 22. Available from: https://www.ncbi.nlm.nih.gov/books/NBK8038/

International travel and health; WHO website. Available at: https://www.who.int/ith/diseases/amoebiasis/en/ accessed on 27th March 27, 2020, at 2 PM
Amoebiasis, Victoria State Govt website. Available at: https://www2.health.vic.gov.au/public-health/infectious-diseases/disease... accessed on 27th March 27, 2020, at 2 PM

Lecture on acute diarrheal disaeses-1 (epidemiology): https://www.youtube.com/watch?v=8VMSn7mJgm8&t=215s
Lecture on acute diarrheal disaeses-2 (control): https://www.youtube.com/watch?v=85iOg3GNevU&t=41s
Lecture (HINDI) on acute diarrheal disaeses-1 (epidemiology): https://www.youtube.com/watch?v=c-bOaC55u-g&t=5s
Lecture (HINDI) on acute diarrheal disaeses-2 (control): https://www.youtube.com/watch?v=acc-nqkjar4&t=1s

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Some Clinical features of diarrhea due to common causative organisms