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PetriKey

Parasite

Schistosoma species

Blood flukes with snail intermediate host

shis-toh-SOH-muh

parasitehelminthflukesnaileggfreshwater

High-yield clue

Freshwater + snail intermediate host + eggs with spine vocabulary.

Overview

Blood flukes used to teach freshwater exposure vocabulary, snail intermediate-host lifecycle, and egg morphology comparison.

Classification

  • Helminth
  • Trematode
  • Blood fluke

Lab & identification clues

  • Egg morphology vocabulary
  • Serology concept
  • Life-cycle stage names

Associations

  • Hematuria or portal-hypertension vocabulary depending on species
  • Granuloma concept
  • Travel/tropical medicine framing

Commonly confused with

  • Taenia species
  • Ascaris lumbricoides
  • Strongyloides vocabulary

Frequently asked questions

What is Schistosoma species?

Blood flukes used to teach freshwater exposure vocabulary, snail intermediate-host lifecycle, and egg morphology comparison.

What are the lab clues for Schistosoma species?

Lab clues for Schistosoma species include Egg morphology vocabulary, Serology concept, and Life-cycle stage names.

What is Schistosoma species commonly confused with?

Schistosoma species is commonly confused with Taenia species, Ascaris lumbricoides, and Strongyloides vocabulary.

Original student-study summary. Sources checked: OpenStax Microbiology 2e, NCBI Bookshelf Medical Microbiology, and CDC topic pages where applicable; reviewed 2026-06. Educational only; no diagnosis, treatment, dosing, or specimen-handling guidance.

CDC DPDx: CDC DPDx schistosomiasis lifecycle and egg vocabulary - sourceOpenStax: Microbiology 2e organism classification foundations - sourceNCBI Bookshelf: Medical Microbiology organism chapters - sourceCDC: CDC disease and public-health topic pages - source