Parasit Cryptosporidium homonis

Question 1

All stages of development of Cryptosporidium hominis are completed in
the ______________________ of the host

Answer 1

gastrointestinal tract

Question 2

Oocysts produced by C. hominis are found in the ______ of humans and other animals

Answer 2

feces

Question 3

the oocyst of C. hominis contains ________________, which are present at the time of passage into the feces

Answer 3

four sporozoites

Question 4

Infective stage of C. hominis

Answer 4

Thick walled oocyte

Question 5

The sporozoites of C. hominis develop into ___________________ and become _____________________ but _______________c, and attach to the brush borders.

Answer 5

small trophozoites, intracellular, extracytoplasmi

Question 6

There are several methods of stool
examination that will reveal C. hominis oocyst.
_____________________ and the ____________________
are commonly used

Answer 6

Sheather’s sugar flotation, Formalin ether/ethyl acetate concentration technique

Question 6

The oocyst of C. hominis is infectious and when ingested, the
sporozoites attach to the surface of ___________________________________-

Answer 6

epithelial
cells of the gastrointestinal tract

Question 7

The ________________ of C. hominis infect other enterocytes thus resulting
in autoinfection, which is possibly responsible
for the chronicity of the infection among the
immunocompromised

Answer 7

thin-walled oocysts

Question 7

The trophozoites of C. hominis divide
by ________ producing __________ that infect
other cells

Answer 7

schizogony, merozoites

Question 7

the ____________________ of C. hominis are passed out with the feces that may contaminate food and water, which are ingested by the same or another host

Answer 7

thick-walled oocysts

Question 8

Cryptosporidiosis hominis may present as a self-limiting diarrhea lasting for ___________________

Answer 8

2 to 3 weeks

Question 9

reported effective treatment for Cryptosporidiosis hominis

Answer 9

Nitazoxanide

Question 9

_______________ is routinely used with the C. hominis oocysts appearing as red-pink doughnut-shaped circular organisms in a blue background

Answer 9

Kinyoun’s modified acidfast stain

Question 10

Swimming pool disinfection
with 3 to 5 mg/L of chlorine _____________
the C. hominis oocysts

Answer 10

does not kill

Question 11

most common mode of
transmission of C. hominis is from ________________________

Answer 11

one person to another