10/01/2021
1️⃣1️⃣. Lumpy Skin Disease:-
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The lumpy skin disease (L*D) is a poxvirus infection of cattle in which cutaneous nodules and lymphadenitis development. The L*D virus is a poxvirus belonging to the genus Capripoxvirus and has been termed the lumpy skin disease. Lumpy skin disease virus has physical characteristics similar to the ortho-poxviruses, such as vaccinia the virus is ether and chloroform sensitive and produces no hemagglutinin. It is antigenically related to the viruses of sheep and goat pox but probably differs biologically because the geographical distribution of L*D differs from sheep pox. L*D was pandemic in some of African countries, Middle East, like tropical country.
✅Transmission:
The transmission processes of the virus manly done by arthropod vector. There are no specific vector has been identified to date, mosquitoes, biting flies and male ticks. There are no any evidence to virus transmission via fomites, for example ingestion of feed and water contaminated with infected saliva, but by the inoculation with material from cutaneous nodule or blood
✅Diagnosis:
Clinical: L*D signs range from in-apparent to severe disease.
Fever could exceed 105°F.
Gradually reduction in milk yield.
Depression,
Anorexia,
Emaciation,
Rhinitis,
Conjunctivitis
Excessive salivation,
Enlarged superficial lymph nodes.
Cutaneous nodules of 2–5 cm in diameter develop, particularly on the head, neck, limbs, udder, genitalia
These nodules are circumscribed, firm, round and raised, and involve the skin, subcutaneous tissue and sometimes even the underlying muscles.
Myiasis of the nodules may occur
Pregnant cows may abort and be in anoestrus for several months.
✅Prevention and Control:
Isolation of infected animal from healthy animal.
Practice vector control.
Control of ticks
Practice rapid and widespread vaccination campaign.
Proper disposal of dead animals (e.g. incineration), and cleaning and disinfection of premises and implements are recommended for L*D.
Import restrictions on domestic cattle and water buffaloes, and selected products from these animals.