26. Crypto

Question 1

— is highly infectious – do not kiss the cute calf!

Answer 1

crypto

only need 150 oocysts to infect human, infected calf produces 30 billion over 6 days!

Question 2

how does Crypto infect cell

Answer 2

moving junction:
sporozoite will use actin to pull itself into cell and make little tent at apical border- trophozoite

extra-cytoplasmic

uses actin pedestal and complex interface

Question 3

crypto are found where in the cell

Answer 3

intestinal epithelium
extra-cytoplasmatic location

Question 4

lifecycle of crypto

Answer 4

three stages, single host

meront → merozoites→ gamont (male) or gamete (female) →fertilization and sporulation into oocyst

Question 5

Answer 5

crypto male gamont

Question 6

Answer 6

crypto female gamete

Question 7

Answer 7

crypto merozoites- can turn into male gamont or female gamete

Question 8

crypto Infection is spread by small round —

Answer 8

ocysts that contain 4 sporozoites

Question 9

crypto Parasites move by — epithelial cells, they are intracellular but —

Answer 9

gliding and invade

extracytoplasmatic

Question 10

A patch of —, a dense band of protein and the
— organelle put parasite on a pedestal and separate it from bulk cytoplasm

Answer 10

host cell actin

feeder

Question 11

crypto have — lifecycle, fertilization and sporulation occur
within host cells

Answer 11

Single host

Question 12

crypto oocysts are immediately infective and cause —

Answer 12

autoinfection

Question 13

— is the 2nd leading cause of diarrheal disease and global child mortality

Answer 13

crypto

Question 14

crypto infection in healthy people cause

Answer 14

Lead symptom is watery diarrhea.
Stomach cramps or pain
Dehydration
Nausea
Vomiting
Fever
Weight loss

Question 15

crypto outbreaks occur in the winter or summer

Answer 15

summer

Question 16

treatment for crypto in humans

Answer 16

no good drugs or vaccines

repeated exposure leads to immunity

Question 17

Frequent crypto infections and
inflammation cause changes in the gut tissue impeding its ability —

Answer 17

to absorb nutrients

leads to malnutrition and stunted growth

Question 18

Infects the abomasum of
cattle not the small
intestine

Answer 18

crypto andersoni

Question 19

what type of crypto is prevalent in adult cattle

Answer 19

C. andersoni

found in abomasum

Question 20

C. andersoni infection cause

Answer 20

No overt disease but may result in diminished milk production

infect adult cattle abomasum

Question 21

crypto- Single host lifecycle and oocysts sporulate within host enabling — and lasting chronic infections (in particular in malnourished & immunosuppressed
individuals)

Answer 21

autoinfection

Question 22

crypto Parasite is limited to infecting epithelial cells, induces actin
pedestal and is intracellular but —

Answer 22

extracytoplasmatic

Question 23

Cryptosporidium is a global leading cause of diarrheal disease in —

Answer 23

young children and young calves

Question 24

crypto of young cows

Answer 24

C. parvum