worms Flashcards
1
Q
what are the three groups of worms?
A
Nematodes (roundworms)
Trematodes (flatworms, flukes)
Cestodes (tapeworms)
2
Q
what do adult worms need to reproduce?
A
a period of development outside the body
3
Q
what in the environment do worms need to reproduce?
A
environmental conditions, animal hosts and/or
vectors
4
Q
how does the body’s worm burden increase?
A
constant re-exposure to infection (as need a time for the worms to reproduce outside the body)
5
Q
****VIP
what is the pre-patent period?
A
interval between infection
and the appearance of eggs in the stool
