The Planet of the Apes prequels did much to explain how humans lost their status as the dominant species on the planet—a cataclysmic set of events fueled by a global pandemic known as the “Simian Flu.” This virus, the product of a medical experiment gone horribly wrong, wiped out the vast majority of humans, but it…
Source: Gizmodo – How Scientifically Plausible Is the ‘Simian Flu’ in Planet of the Apes?