Cryptosporidiosis

Question 1

What is the cause of cryptosporidiosis?

Answer 1

by the protozoan Cryptosporidium spp (parvium and hominis)

Question 2

How the cryptosporidiosis can transmit?

Answer 2

fecal-oral route

person-to-person contact.

animal contact.

Question 3

What are the morphology of cryptosporidiosis?

Answer 3

Thin -walled oocysts (asexual stage) excyst within the same host (causing self-
infection)

Thick-walled oocysts (sexual stage) are shed into the environment.

Question 4

What is the type of host cryptosporidiosis

Answer 4

Defemitve
Interediate
Reversore

Question 5

How many cells is needed to cause infection

Answer 5

Cryptosporidium oocysts are highly infectious, requiring < 10 oocysts to cause human disease for some isolates.

Question 6

Time of incubation period?

Answer 6

incubation period is an average of 7 days.

Question 7

What are the characteristics of sever cases?

Answer 7

Severe disease is characterized by villous atrophy and crypto hyperplasia.

Question 8

Site of ectraintestinal cryptosporidiosis?

Answer 8

Pulmonary
Biliary tract
Pancreas

Question 9

Site of infection in immunocompromised?

Answer 9

enteric to ileo-colonic.

Question 10

Diagnosis of cryptosporidiosis?

Answer 10

Stool Tests:

acid-fast staining

pinkish-red color on a uniformly green background.

Question 11

What are the Differential Diagnoses?

Answer 11

3cgs

Campylobacter Infections
 Cyclospora Infection (Cyclosporiasis)
 Giardiasis
 Cystoisosporiasis
 Salmonella Infection (Salmonellosis)
 Shigellosis