Emerging diseases are present and endemic in 20 sub-Saharan countries. The strategy and control of emerging diseases should be based on the early detection of the disease and the adoption of strict measures in the control and biosecurity.

Laboratory diagnosis is essential for an accurate diagnosis; fast and effective diagnosis is based on the ability to limit the spread of the virus and to implement the necessary measures as soon as possible, as these factors are crucial to the evolution of the disease and the resolution of problem. The most important factor of spread of the devastating diseases have been identified as the lack of early detection due to knowledge / experience insufficient clinical manifestations of the diseases on the part of farmers, livestock keepers and technical staff . The rapid spread of the diseases is due to their highly contagious nature and the ability of the virus to persist for long periods in a protein environment. Due to the high mortality, close to 100 percent, they cause a significant surplus of dead animals, which constitutes a considerable reservoir of viruses.