01:146:328 Lecture Notes - Lecture 7: Ocular Larva Migrans, Ancylostoma Caninum, Ancylostoma Braziliense
18 Mar 2016
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Document Summary
Diagnosis of infection: perfect gold standard is a test that has specificity and sensitivity of 100%. Every time you diagnose a disease you will get it correct 100% of time. Definition: it accurately predicts disease or infection status in every individual and in every stage of infection: gold standard sensitivity and specificity are well defined but less than gold standard. Tests to diagnose parasitic infections: look for eggs in feces example: wet-smear, blood smears, immunological assays identify the host response to the parasite. Rather than finding the parasite itself, we"re determining whether or not the host experiences an immune response: toxocara caris. Infections: us considered neglected parasitic infection, common infection in dogs, therefore there is high risk of human exposure, each year in the us 70 people are blinded by this infection (mostly children) Symptoms depend on where the larvae are: fever. If larvae in the digestive tract abdominal pain. If larvae in the eye vision problems.
