Schistosomiasis (bilharzia) Flashcards
1
Q
what is the definitive host
A
humans
2
Q
how are humans infected
A
contact with contaminated water
3
Q
what is the immediate host
A
snails. the parasite lives and shreds in the snail called cercaria which swim by chemoattractants to find a new host (humans) to infect
4
Q
what is the pathology
A
rash at site of incoculation, abnormal tenderness, kidney dysfunction, fertility defects, bloody stools
5
Q
what are eliminate methods being used
A
- hygiene education
- access to portable drinking water
- three vaccines in clinical trials
- preventative chemotherapy to break transmission
