(D1) Infectious disorders of the skin of large animals

papillomatosis common name is

warts

what causes warts

host-specific viruses called papilloma viruses.

how are warts spread

1. direct contact

2. infected equipment

Immunity to one type of warts, …

does not necessarily mean immunity to the other types.

clinical signs of warts (6)

1. Appears white

2. appears tan

3. appears grey

4. warts are smooth

5. warts are cauliflower-like

6. vary in size.

how to diagnose warts

warts

how to treat warts (3)

1. Leave it alone

2. Cryosurgery.

3. Surgical removal

how to prevent warts (2)

1. A commercial killed vaccine

2. Autogenous vaccines prepared from wart tissue

Dermatophytosis common name is

ringworm

is ringworm zoonotic

yes

what fungi causes ringworm (2)

1. Trichophyton spp.

2. Microsporum spp.

how is ringworm spread (2)

1. fomites

2. direct contact

what environments does ringworm like

warm, moist environments.

clinical signs of ringworm (3ish)

1. Greyish-white crusts

2. circular(ish) in shape.

3. crusts become dry, detach, and leave a hairless patch.

where is ringworm most commonly found (4)

1. head

2. neck

3. perineum.

4. girth/saddle area.

how to diagnose ringworm (6)

1. Skin scrapings are taken from the edge of the lesion.

2. Can do fungal cultures

3. Using a hemostat gently pull out hairs from the edge of the lesion

4. Embed the hairs into fungal culture media.

5. Incubate at room temperature (20 to 22℃) in the dark for 7 to 14 days.

6. Check media for red colour change indicative of colony growth.

how to treat ringoworm (2)

1. nothing

2. meds

how to prevent ringworm (6)

1. Isolate-affected animals

2. treat animal

3. Use separate equipment for infected animals.

4. Disinfect environment

5. disinfect equipment

6. vaccine

define Contagious Ecthyma

Dermatitis affecting the oral area of sheep and goats

Contagious Ecthyma aka

sore mouth

how is Contagious Ecthyma spread (2)

1. contract the virus from ewes teats

2. the scabs that fall off of other infected lambs

clinical signs of Contagious Ecthyma (5)

1. pustules on the lamb’s lips and face

2. Pustules increase in size until they rupture

3. release yellowish fluid

4. Very painful

5. lambs may quit sucking from pain

how to diagnose Contagious Ecthyma

Biopsy

how to treat Contagious Ecthyma (2)

1. nothing

2. antibiotics

how to prevent Contagious Ecthyma (2)

1. Isolate affected animals

2. Sanitation

is Contagious Ecthyma zoonotic

yes

what does PCR stand for

Polymerase Chain Reaction

define PCR

This is a highly accurate laboratory method used to detect genetic material from a pathogen, such as a virus or bacteria.