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The primary and secondary hosts respectively of bilharzia are

Biology
JAMB 1985

The primary and secondary hosts respectively of bilharzia are

  • A. fish and man
  • B. man and dog
  • C. man and snail
  • D. fish and snail
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Correct Answer: Option C
Explanation

The intermediate hosts of Schistosoma spp. (Bilharziasis) are various species of freshwater snails. Eggs are shed from the human host in feces or urine. Under optimal conditions in the environment, the eggs hatch and release miracidia, which swim and penetrate specific snail intermediate hosts.


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