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17 July 2026

Cyclosporiasis outbreak in the U.S.

While the outbreak is a foreign health event, it serves as useful context for discussing food safety standards, supply chain management in the food processing industry, and public health surveillance systems relevant to India.

1 min read 2 questions 1 prelims

Notes

  • Cyclosporiasis is a gastrointestinal illness caused by the microscopic parasite Cyclospora cayetanensis.
  • Transmission occurs via the faeco-oral route through consumption of contaminated food or water; it does not spread person-to-person.
  • Symptoms include frequent, explosive, watery diarrhoea, bloating, loss of appetite, stomach cramps, fatigue, and weight loss.
  • Complications include severe dehydration, malabsorption, cholecystitis, and reactive arthritis.
  • Diagnosis is challenging as the parasite is not part of routine stool testing; requires PCR or microscopy of multiple stool samples.
  • Treatment involves a 7-10 day course of trimethoprim-sulfamethoxazole (TMP-SMX) and hydration.
  • Outbreaks are historically linked to contaminated fresh produce like leafy greens, lettuce, spinach, herbs, raspberries, and snow peas.
  • CDC reports 1,645 confirmed cases in the U.S. since May 1, with 5,100 additional cases under investigation.

Questions

  1. What is Cyclosporiasis and what are the challenges associated with its diagnosis and management in public health systems? 150 words
    Attempt this — 150 words in 8 min
    0 / 150 words 8:00
  2. Foodborne illnesses pose a significant challenge to global public health security. Discuss the transmission dynamics of parasitic infections like Cyclosporiasis and evaluate the importance of food safety standards and surveillance mechanisms in preventing large-scale outbreaks. 250 words
    Attempt this — 250 words in 11 min
    0 / 250 words 11:00

Prelims

  1. Which of the following statements regarding Cyclosporiasis is correct?