Infectious Stages Flashcards
(18 cards)
Giardia
cysts
Cystoisospora
sporulated oocyst
sarcocystis
intermediate host ingests sporocyst
definitive host ingests sarcocyst
hepatozoon americanum
tick with oocysts
toxoplasma gondii
bradyzoites/sporulated oocyst
neospora caninum
sporulated oocysts
dipylidium caninum vector and infectious stage
vector (arthropod - flea)
cysticercoid
taenia spp.
larval cysts
Dioctophyma renale
ingestion of egg in paratenic or intermediate host
Dirofilaria immitis
vector (mosquito) with L3
spirocerca lupi
ingestion of L3
strongyloides sercoralis
infectious L3 via soil/water
transmammary infection (dogs)
trichuris vulpis “whipworm”
ingestion of egg
tritrichomonas foetus
oocysts
toxocara canis “round worm”
ingestion egg with L3
prenatal/transplacental of L3
toxocara cati “round worm”
ingestion of L3
prenatal/transplacental of L3
transmammary of L3
toxascaris leonina “round worm”
ingestion of egg with L2 or paratenic host with L3
no migration
Ancylostoma spp. & Uncinaria spp. “hookworms”
penetration of skin of L3
ingestion of L3 from environment, paratenic host or milk
transmammary of L3
