Cryptosporidium parvum

Question 1

type of parasite

Answer 1

protozoan parasite

Question 2

reservoir

Answer 2

animal (farm animals especially cattle)

Question 3

transmission

Answer 3

ingestion of water contaminated with animal feces

Question 4

oocyst

Answer 4

protected by a thick outer shell that allows it to survive outside the body for long periods of time and makes it very tolerant to chorine disinfection

Question 5

duration

Answer 5

10-14 days (immunocompromised person)
months (immunocompromised hosts AIDS)

Question 6

signs + symptoms

Answer 6

non invasive, secretory diarrhea

Question 7

diagnosis of cryptosporidiosis

Answer 7

ova and parasite exam : modified acid-fast staining of stool