This would explain why scores of new, never before seen viruses, suddenly began emerging from central Africa. A whole host of new viruses suddenly began appearing, in the late 60s and early 70s, and the US always said the same thing, ie, it emerged fom chimps, apes, and monkeys in Africa, which is of course BS. If that's the case then how come these so called new viruses never appeared before in the thousands of years these animals inhabited central Africa? Natually occuring viruses like Smallpox and Rabies have been around for 3,000 to 4,000 years, so WHY the sudden onset of new viruses from the late 1960s onwards?