TEMA 12 - FAMILY SARCOCYSTIDAE, SUBFAMILY SARCOCYSTINAE

Question 1

Tachyzoite

Answer 1

a

Question 2

Psudocysts

Answer 2

b

Question 3

Bradyzoite

Answer 3

c

Question 4

Infectant forms

Answer 4

Tachyzoite, Bradyzoite and Isosporoid cyst

Question 5

Life cycle

Answer 5

d

Question 6

Tpe of cycle

Answer 6

Di-heteroxenous cycle

Question 7

Definitive hosts

Answer 7

Carnivorous or humans beings, usually predators

Question 8

Intermediate hosts

Answer 8

Herbivores

Question 9

How is released

Answer 9

The DH releases in faeces sporulate or mature oocyts to the external environment

Question 10

Species

Answer 10

Sarcocystis hominis (DH cattle)
Sarcocystis suihominis (DH pigs)

Question 11

Morphological characteristics

Answer 11

Sporulated oocysts 2x4

Question 12

Symptomatology

Answer 12

Humans are asymptomatics. Abdominal pain, diarrhea or sickness may appear if there is infiltration in lamina propia.

When paraistes enter the IH, they migrate ultil they reach organs and they form tachyzoites. This migration process manifest itself with petechia, edema and tissue necrosis. Once it is transformed intro sarcoctsts and. sttle down in muslces, cells and brain; mytiositis, anemia, fever, loss of appetite and death (obtruction the cardiac muscle tissue or by toxin poisoning)

Question 13

Diagnosis

Answer 13

Faces of oocysts or sporocysts.Western Blot. In the IH, the only think that we can do is to look for the presence of sarcocystis by looking necrosis mainly in tissues and brain.

Clidamycin