Infective and Diagnostic forms Flashcards
DIphyllobothrium latum
IF - Plerocercoid larva
DF- Eggs, segments of tapeworm
Taenia saginata
IF - Cysticercus bovis
DF - Egg
Taenia solium
IF - Cysticercus cellulosae
DF - Egg (for intestinal taeniasis) / larvae (for cysticercosis)
Echinococcus
IF - Egg
DF - Protoscolices and brood capsules
Hymenolepsis nana
IF - Egg
DF - Egg
Schistosoma
IF - Cercariae
DF - Nonoperculated eggs
Fasciola hepatica
IF - Metacercaria larva
DF - Operculated eggs
Fasciolopsis buski
IF - Metacercaria larva
DF - Operculated eggs
Paragonimus westermani
IF - Metacercaria larva
DF - Operculated eggs
Clonorchis sinensis
IF - Metacercaria larva
DF - Operculated eggs
Ascaris lumbricoides
IF - Egg
DF - Unembryonated eggs in stool
Hookworm
IF - Filariform larva
DF - eggs (in fresh stool) / larva (in old stool)
Strongyloides
IF - Filariform larva
DF - Rhabditiform larva
Trichuris
IF - Embryonated egg
DF - Unembryonated egg
Enterobius
IF - Egg
DF - Eggs (from perianal skin)