AI Article Synopsis

  • Cercarial dermatitis is a common issue for rice farmers in the Caspian Sea region of Iran, linked to a specific parasite.
  • The eggs of the parasite Orientobilharzia turkestanicum were discovered in the feces of a plowing bull.
  • Laboratory experiments showed that uninfected Lymnaea gedrosiana snails could produce cercariae, leading to dermatitis in humans after exposure to the infected snails.

Article Abstract

Cercarial dermatitis is very common among rice farmers in the Caspian Sea area of Iran. The characteristic eggs of Orientobilharzia turkestanicum were found in the feces of a plowing bull. Fifty-six percent of uninfected Lymnaea gedrosiana maintained at 24-25 degrees C produced cercariae, identical to those from natural infections, 21 days after exposure to the miracidia obtained from the feces of the bull. Cercariae of O. turkestanicum from naturally infected L. gedrosiana produced dermatitis on the arm of one of us.

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