The term 'Flying African Threat' is referring to the TSETSE fly, a species of biting fly native to Africa. The TSETSE fly is known for transmitting diseases such as sleeping sickness and nagana, which can be fatal to humans and animals. It is also a major agricultural pest, as it feeds on the blood of livestock. The TSETSE fly is an important vector in the spread of these diseases, and is considered a major threat to public health in Africa.