3. Foot and mouth disease

Question 1

cause of foot and mouth disease

Answer 1

picornaviridae –> aphthovirus

Question 2

species affected by foot and mouth

Answer 2

Cloven-hoofed animals →cow, sheep, goat, pig (not horse)
zoonotic

Question 3

what type of virus is aphthovirus

Answer 3

Epitheliotrop virus

Question 4

which animal shows most severe symptoms

Answer 4

cattle

Question 5

most senstitive animal

Answer 5

pigs

Question 6

lesions of foot and mouth on the head

Answer 6

fluid filled vessicles on lips, buccal mucosa, tongue, nasal mucosa, esophagus
rumen enlarge, create bullae and ulcerate → irregular patches of red, denuded submucosa.
Conjunctivitis

Question 7

lesions of foot and mouth on the body

Answer 7

Vesicular dermatitis: of the interdigital cleft, coronary band (→whitening due to fluid accumulation), teats + vulva

Myocarditis (Zenker’s necrosis, “tiger heart”):

Question 8

differential diagnosis of foot and mouth

Answer 8

BVD if the rumen is affected