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Analyzing Roundworm Infection
Chapter 22: Worms and Mollusks

Some human diseases are caused by roundworms. Scientists often study how humans become infected in order to prevent and/or treat the disease. Look at the table and analyze the information about roundworms and disease.


Roundworm Human Organs Affected Source
Ascaris small intestine contaminated food or water
Filariae lymph vessels infected mosquitoes
Hookworm small intestine contaminated soil
Pinworm large intestine contaminated feces
Trichinella intestines, muscles raw or undercooked contaminated meat


Analyze the Table


  1. How can you become infected with parasitic roundworms?
  2. What can you do to decrease the incidence of becoming infected with roundworms?



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