tissue dwelling protozoan Flashcards
where is toxoplasmosis found
everywhere, including humans
-tissue and blood
what is a tachyzoite
crescent shaped and we produce antibodies to this form
-identify via serology and looking for antibodies
how is toxoplasmosis transmitted
oocysts in contaminated meat or contact with cat litter
what disease is why pregnant women should NEVER change cat litter
toxoplasmosis
why is toxoplasmosis dangerous
invade CNS of immunocompromised patients (AIDs)
-cause multifocal brain lesions
Dx brain biopsy
how to we diagnosis toxoplasmosis
indirect testing- looking for antibodies
what is a small parasite that can pass through many things
Cryptosporidium parvum
where is Cryptosporidium parvum found
intestinal tract of fish, reptiles, birds, and mammals
who is Cryptosporidium parvum a pathogen to
immunocompromised pt
how is Cryptosporidium parvum transmitted
water
-life threatening to HIV patients
-diarrhea and lost half of body fluid in 1 day
what form is an infection
C. parvum
how is Cryptosporidium parvum detected
PCR- now
use to dx with modified acid fast Kinyoun stain
-look for oocysts in stool
why is Cryptosporidium parvum life cycle complicated
sexual and asexual stages take place within same host
infective and diagnostic stages for Cryptosporidium parvum
oocysts
minumum amount of oocysts to be infective for Cryptosporidium parvum
10
