Uveitis: Protozoal Uveitis Flashcards
tissue cyst
in which form of toxo is the bradyzoite found
ooycyst (soil cyst), tachyzoite (infectious form), tissue cyst (latent form)
three major forms of the Toxoplasmosis gondii parasite
oocyst
form of toxo that cats shed in their feces
II
of the three genotypes of toxo, which is found in North America?
I
of the three genotypes of toxo, which is the most virulent?
22.5%
prevalence of toxoplasmosis infection in the US
2%
prevalence of ocular toxoplasmosis among those infected in the US
85%, 18%
In Brazil, where the type I genotype is more prevalent, this percentage of the population of southern Brazil is infected, with this percentage of those affected with ocular disease
tissue cyst
infectious form of toxo found in undercooked meat
tachyzoite
infectious form of toxo responsible for transplacental infection and through breaks in the skin
40%
percentage of primary maternal infections with toxoplasmosis that result in congential infection
1 year
to reduce the rate and severity of ocular involvement, infants with toxoplasmosis should be treated for this length of time
1/3
percentage of toxoplasmic ocular disease that is attributed to congenital infection
38%
toxoplasmosis accounts for this percentage of cases of posterior uveitis (this number is dropping)
mild to moderate granulomatous anterior uveitis, uveitic ocular hypertension
two common anterior segment manifestations of toxoplasmosis