'Lumpy Skin Disease' (LSD) is a disease affecting cattle, caused by a 'capripox virus'. It causes fever, depression, skin nodules and oedema, enlarged lymph nodes, milk drop, swelling in the legs and lameness.
After an initial period of high fever and swollen lymph glands, the animal may develop large, firm nodules that are up to 5 cm in diameter in the skin. The nodule can cover full body or only few can appear. There is no treatment for LSD.
It is not fully understood how lumpy skin disease virus is transmitted between animals. It is believed that LSD virus is mainly transmitted by blood-sucking insect vectors like mosquitoes, flies and ticks or by contaminated needles.
Lumpy Skin Disease virus can be found in the blood for up to 21 days post-infection but shedding in semen may continue for at least 42 days post-infection. The LSD has remained confined to Africa, where it was first discovered in 1929, after that it spreded in many countries of Asia and Europe.