How is viability testing performed for schistosomiasis (bilharzia)?

Updated: Sep 20, 2018
  • Author: Shadab Hussain Ahmed, MD, AAHIVS, FACP, FIDSA; Chief Editor: Michael Stuart Bronze, MD  more...
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Answer

Viability testing requires mixing the stools or urine with room-temperature distilled water and observing for hatching miracidia. An active infection produces viable eggs, while treated or past infection results in nonviable eggs and an absence of miracidia.


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