Lectures 70+71 Intestinal Parasites

Question 1

_____ host is the term used to describe the organism in which parasites mate, while ______ host is the term used to describe the organism in which parasitic larvae mature.

Answer 1

Definitive host

Intermediate host

Question 2

Thricuris trichura have characteristic _______-shaped ova.

Answer 2

Football-shaped

Question 3

Hook worms, which include Ancylostoma duodenale and Necotar americanus, have a characteristic _____ (thick or thin?) layer around their ova?

Where in America are hookworms typically found?

Answer 3

Thin

Typically found in the southern states

Question 4

Enterobius vermicularis, aka _______, is about the size of a _____ in adult form.

Answer 4

Pinworm

Staple

Question 5

Ingestion of Taenia solium ____ (eggs or larvae?) can cause cysticercosis (swiss cheese brain).

Answer 5

Eggs

Question 6

______ _____ is resistant to chlorine, so people that have recently swum in pools/wave pools are at risk.

Answer 6

Chryptosporidium parvum