Toxocariasis Flashcards Preview

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Flashcards in Toxocariasis Deck (6)
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1

What parasite causes the disease?

Toxocara canis and Toxocara cati

2

Transmission cycle

1) infected dog or cat defecate into environment containing Toxocara canis/cati
2) Ingest dog or cat feces
2) Once the eggs are ingested, the larvae hatch and enter the bloodstream into organs and other tissues

3

Toxocariasis

2 Forms:
1) Ocular Toxocariasis
-results from movement of the parasite into the eye
-causes visual impairment that can be permanent, including blindness
2) Visceral Toxocariasis
-results from the movement of the parasite through organs or tissues
-can lead to severe damage to the liver and other organs

4

Transmission

1) accidentally ingest dirt containing toxocara eggs
2) rare- eating undercooked or raw meat from an infected animal

5

Who are at the highest risk for being infected with Toxocariasis

Children are the highest risk
-dog owners
-under the age of 20 due to more contact with soil
-People who live in hot humid regions where the roundworm eggs remain alive in the soil for log periods of time

6

Symptoms

Fever and coughing
Severe illness
inflammation of liver
blindness