08 - Cryptosporidium

Question 1

(Cryptosporidia)

1. parasitize what?
2. What kind of parasites (how many hosts)?
3. Where located relative to cell?

Answer 1

1. vertebrates
2. monoxenous
3. epicellular (close proximity but not inside cell)

Question 2

What are the main differences in the repro cycle here?

Answer 2

naked sporozoites (no sporocysts)

oocysts are fully sporulated when excreted

means they are infective immediately

(the stuff in yellow)

Question 3

What are the common 4?

what is the one we really need to know?

how big are cryptosporidum spoes?

Answer 3

parvum, muris, baileyi, meleagradis

parvum (the only one we are going to worry about… so forget about remembering the four)

are always the smallest

Question 4

exactly what we talked about in last two lectures

what is the difference here though?

What is another big difference?

Answer 4

the number of sporozoites (and the fact that they are naked) in the oocyst

all takes place on the surface of the epithelial cells

Question 5

Answer 5

Question 6

Question 7

(Cryptosporidium: Cattle)

1. typically get at what age - older calves more likely to get what?
2. Infection lasts how long?
3. can they develop immunity?

Answer 7

Question 8

Answer 8

Question 9

defining disease in what?

Answer 9

AIDS

Question 10

Answer 10

Question 11

What drugs can control infection?

Answer 11

Question 12

Question 13

Answer 13

crypto (not bovine coccidia)