Includes the nematodes (roundworms) and the platyhelminths (flatworms).
Platyhelminths consists of the cestodes (tapeworms) and the trematodes (flukes).
Symptoms and physical findings: abdominal pain, enlarged liver and spleen. Blood in the urine.The patient had taken a trip to Egypt over a year ago. During this trip they remembered developing a rash that eventually resolved.
Main species that cause human infection (Schistosomiasis)
blood trematode Schistosoma (three types)
Schistosomiasis How many at risk and how many thought to be infected? Deaths?
Estimated 700 million people are at risk.
207-240 million are thought to be infected worldwide with 280,000 deaths annually.
What mainly causes symptoms in Schistosomiasis ?
Disease symptoms are caused mainly by reactions to the eggs released by the adult worms.