If you travel in Africa, you might have a safari tour because you’d like to take your chance. At the time you have to be careful about wild animals and viruses. The animals like foxes, lions, bears, and snaks may attack people because they commonly have a violent temper. Also we ought to have scrupulous attention to animals. When rearers breed perilous animals at zoos, the animals such as lions, tigers, snakes, and bears are dangerous if they escape because they can injure some people. But a lot of people like dogs, and cats, and cows as useful animals because they breed quickly. Then, many viruses are contagious by animals. There are many different kind of viruses in the world. Especially, peculiar viruses like HIV, SARS, and Ebola spread more easily in Africa because the countries have inferior environments and little understanding of the viruses. However, Africa has many diamonds mines of excellent quality. Then, rich people of Africa usually wear diamonds as magnificent jewely. Though there is a keen distinction between the rich and the poor. Most countries of Africa are very poor and uneducated that have wild animals, and serious diseases, and special viruses, So we have to give positive aid to Africans.