Streptothricosis

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Streptothricosis

Dermatophilosis, Strawberry Footrot, Lumpywool


 Causes:

  • Heavy rain or injury to the skin can enable the organism to penetrate the skin.

Symptoms:Streptotricosis1 

  • Scabs form over the body that mat the hairs together. Extensive face and mouth lesions are commin in some tropical areas. Acute generalized infection can occur in as short a time as 2 weeks or may take years. Dditional symptoms are decreased production, weight loss, and in severe cases, death. When scabs are removed, the typical form is a cone-shaped scabn with a concave bottom and with a yellow exudate under it. The tissue under the scab is red, granular looking and may bleed. During the healing stage the scab will separate from the skin but mat in the hair. Diagnosis is made from symptoms and laboratory procedures.

 Transmission:

  • The organism is transmitted by insects and tick bites or from contaminated surroundings.

Treatment:

  • A large dose of penicillin (70,00 IU/kg) and streptomycin (70 mg/kg) will halt invasion of the organism as will long-acting tetracyclines. Treatment with chloramphenicol or shorter acting tetracyclines may help if the organism is resistant to penicillin or streptomycin. Advanced cases do not respond well and reinfection is common.

Prevention:

  • Prevention is difficult.

 

References:

Source 1

  • Thedford, Thomas R. Goat Health Handbook: A Field Guide for Producers with Limited Veterinary Services. Morrilton, AR: Winrock International, 1983.

Source 2

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