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Endoparasites

QuestionAnswer
Endoparasite Parasite that lives on inside of host
Ectoparasite Parasite that lives on outside of host
Parasite Organism that live in or on another organism deriving it of nutrients to survive
Common methods of transmission insect bites - ingestion (raw meat, dirt, etc.) - drinking contaminated water
Anthelmintic Dewormers
Prophylactic to prevent disease
Ova Multicellular egg
Larvae Juvenile form of parasite
Prevention keeping animals from getting infected by parasites
Rotational Deworming Deworming based on the season
Suppressive treatment Giving lots of dewormers/preventives to keep worm load low
Strategic Deworming Test and treat
Encyst When worms move out of intestines and go dormant in other tissues
Transplacental Embryo infected with worms via placenta
Transmammary Baby is given worms through milk
Preventives Routine meds given to prevent infection of parasites
Proglottid Segment from tapeworm which is shed containing eggs - looks like rice
Tapeworms live in the --- small and large intestine
Tapeworms Flat, white, and segmented
Tapeworm Ova Ovalish with many round eggs inside, not much room in egg -- little grape clusters
Tapeworms need _______ to reproduce Vector --- fleas and mites
The most common intestinal worm Round worms -- because they are prolific and easy to spread
All intestinal worms cause GI upset
Roundworm genus Toxocara (double o like round worm ova)
Tapeworm species Dipylidium caninum (despicable -- can grow long like name)
Roundworms can be passed on via Egg ingestion, vector, transmammary, transplacental - that's why they are so common!
Roundworm Ova Round, looks like a fried egg
Whipworm species Trichuris vulpis (tricky whippies)
Roundworm lives in small and large intestine - likely to encyst when young
Whipworms live in the large intestine
Whipworms and Hookworms are _____ and cause _______ heavy blood feeders, anemia
Whipworms cause ______ stool Red bloody stool
Why are there so many false negatives for Whipworms? They have a long life cycle and lay few eggs
Whipworm Ova Footballs/Stewie's head
Whipworms transmit via ingestion - no vector
Hookworm species Anycylostoma caninum - (A like blood type A, they are heavy blood feeders)
Hookworms are transmitted via Ingestion, transplacental, transmammary, and burrowing through skin -- no vector
Hookworms live in Small intestine
Hookworms cause _____ stool black stool
Hookworm ova Ovalish, small round egg things inside, lots of room for lil eggs.
Hookworms, Tapeworms and Roundworms are Zoonotic (not always wildly successful)
Protozoa Single celled parasite
Protozoa egg Oocyst
Protozoa's are Still parasites, they are just single celled - think of toxoplasma
Fecal analysis Take FRESH fecal sample, and look under microscope to look for Ova.
How often should your dog get a fecal? Annually
Treatment for parasites Most often broad spectrum dewormers (some need more specific meds). Sperate meds to kill Protozoa.
How many times must you repeat treatment? every few weeks for a period of time to eliminate all stages of life.
Good for killing hooks, rounds, and whips Fenbendazole, Pyrantel, Ivermectin
Good for killing tapes Praziquantel
Good for coccidia Sulfadimethoxne
Heartworms Worm in circulatory system - mostly effects dogs - cats and ferrets can be effected to but are dead end hosts, they can't be treated
Heartworm Species Dirofilaria immitis (microfilaria)
Stage 1 Heart worm Mosquito eats infected blood
Stage 2 Heart worm Larvae develop into infective
Stage 3 Heart worm Mosquito infects dog via bite
Stage 4 Heart worm Microfilaria develop in dogs circulatory system and make way to the right side of the heart.
Stage 5 Heart worm Heartworms mature in the heart, reproduce, and the cycle repeats
How to prevent heartworm Monthly Preventives (heartgard)
Heartworm Treatment Treatment is costly and dangerous
Created by: RedFlyingThing
Popular Veterinary sets

 

 



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