Contagious Ecthyma ( Sore mouth  / Scabby mouth / Contagious Pustular Dermatitis  )

Contagious Ecthyma ( Sore mouth  / Scabby mouth / Contagious Pustular Dermatitis  )

Compiled by :

Dr.ASHOK KUMAR VALUPADASU

Deputy Director

V & AH Dept Telangana

CLA –Sheep ( MANAGE )

8500404016 / sathya0grazing@gmail.com

 

• A viral disease found worldwide.

• Occurs in Sheep, Goats & others

• Causes sores & blisters on the

• Lips
• Nose
• Ears
• Eyelids
• Other hairless parts (Feet, Genitalia & Udder)

• Spread

1. by direct contact with cuts and abrasions in the skin.

1. by fomites like inanimate objects such as shoes or clothing, halters, brushes, and other equipment

• Virus

1. Is very hardy in the environment.

1. can remain on the wool and hides for approximately one month after the lesions have healed

1. has been recovered from scabs after 12 years.

1. Immunologically different from Sheep Pox

• Incubation period : 5-8 days
• Morbidity : 90%
• Mortality : Very low if not complicated

• Signs

1. are seen in 2 to 3 days after Sheep and Goats are exposed to the virus.

2. The first signs are small raised bumps (papules), sores, and blisters found on the lips, nose, ears,

3. Affected lambs/Kids are not able to suckle and so become debilitated.

4. Scabs are shed in 3 weeks.

5. Ewes / Does : Nursing lambs / Kids can transmit the virus to their mothers, resulting in lesions on the teats and udder. Because these lesions can be painful, they can result in

1. loss of appetite
2. weight loss
3. Starvation leading to Pregnancy Toxaemia
4. Excess salivation

• It is Enzootic @ Humans can also be affected through contact with infected animals.

1. Contagious ecthyma in humans is called orf.
2. Signs are usually seen 3 to 7 days after exposure to the virus.
3. Exposure occurs by direct contact with skin lesions or scabs of infected animals.
4. In humans, usually only one single skin lesion

1. Typically the lesion heals on its own in 2 to 6 weeks without scarring.
2. For prevention
3. Washing hands frequently after working with animals.
4. Wear disposable gloves when handling sick animals.
5. Minimize contact with sores as much as possible.

• Prevention

• Isolate sick animals to limit exposure to others.
• Thoroughly and frequently clean and disinfect areas where ill animals are kept.
• Vaccine # not available in India

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