• Sajjad Ali, Sunil Mumar, Kiran Kalam, Kapeel Raja, and Shehla Baqi.
• J Pak Med Assoc. 2014 Jun 1;64(6):613-8.

ObjectiveTo document the prevalence, clinical presentation and treatment outcome of cryptosporidiosis in immunocompetent adult patients presenting with acute diarrhoea.MethodsThis prospective cohort study was conducted at the Sindh Institute of Urology and Transplantation Karachi from February 1, till September 30, 2012. All immunocompetent adult patients who presented with acute diarrhoea to the gastroenterology clinic at SIUT were included. Data collection sheet was filled and stool studies sent. Modified acid fast stain of stool was performed for cryptosporidium. SPSS 20 was used for statistical analysis.ResultsThere were 105 patients with acute diarrhoea. Fifty three (50.4%) were males. The mean age was 34 +/- 8.4 years. Of 105, 58 (55%) patients had cryptosporidium isolated in stool studies. Patients with cryptosporidiosis had statistically significant greater stool frequency per day (p < 0.001, OR = 12.7; CI [4.4-37.11), abdominal pain (p < 0.001, OR = 19.8 [6.1-64.11), vomiting (p < 0.001, OR = 7.3 [2.7-19.9]), low grade fever (p < 0.001, OR = 8.5 [3.5-20.8]), fatigue (p < 0.001, OR = 8.4 [3.2-21.6]) and dehydration and a shorter duration of illness with more watery diarrhoea. All 58 patients reported resolution of diarrhoea after 7 days of treatment with nitazoxanide. However, 40 (70.1%) patients reported recurrence of diarrhoea within 6 weeks of treatment.ConclusionOur study demonstrates a high prevalence of cryptosporidiosis in immunocompetent adult patients. Nitazoxanide is the recommended antimicrobial drug for cryptosporidiosis.

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