05 - Trypanosomes

Question 1

(Hemoflagellates)

Answer 1

Question 2

1. T. Cruzi causes what?

Answer 2

1. American trypanomiasis (Chagas’ disease)

Question 3

(Trypanosoma Cruzi)

1. What are the direct hosts?
2. reservoir hosts?
3. intermediate?

Answer 3

1. humans, dogs, primates
2. armadillos (mostly)
3. kissing bugs

Question 4

Question 5

(Trypanosoma Cruzi)

when the feed they poop into wound

Answer 5

Question 6

(Transmission of T. Cruzi to Humans and Dogs)

1. What is the most significant route?

Answer 6

1. trypanosome infected bug feces rubbed into bite wound or intact mucous membranes

Question 7

1. are there acute and chronic phases in canine chagas?

Answer 7

yes

Question 8

don’t worry much about these

(Trichomonas Vaginalis)

1-3. how do you diagnose?

Answer 8

1. blood smears (in acute phase)
2. serologic tests
3. xenodiagnosis

Question 9

Answer 9

Question 10

(African Trypanosomiasis)

know the NAGANA thing!

1. transmitted by what?

Answer 10

1. tsetse flies (Glossina spp.)

Question 11

I don’t think I’ll need to know this

Answer 11

but know this i think…. similar to previous cycle

Question 12

(Nagana)

1. what are the hosts?

Answer 12

1. antelopes and other native ruminants (CATTLE!!!)

Question 13

Answer 13

don’t typically die! believe it or not!

Question 14

(NAgana)

1. severity of disease depends on what?

Answer 14

1. trypanosome spp. and host susceptibility

Question 15

Question 16

(Other trypanosomes)

1. what causes “Surra” in horses (and camels and deer)?
2. transmitted by what?
3. disease similar to what?
4. What causes “Dourine”/”mal du coit” in horses and donkeys?
5. what type of disease?

Answer 16

1. T. evansi
2. tabanid and stable flies
3. T. brucei
4. T. equiperdum
5. venereal