If humanity encountered a virus similar to that of 1918 (we are talking about the Spanish flu), between 20 and 100 million people would die. But the flu virus is not the only one that threatens humanity - according to the World Health Organization, 39 new diseases were discovered at the beginning of the 1980s, mostly transmitted from animals to humans. Many of the new viruses that have threatened humanity are actually 'old', as animals have been carrying them for centuries. The best example of this is the HIV virus, which is the successor of the SIV virus (Cameroon chimpanzee virus). Experts believe that the transformation of 'peaceful SIV' (non-dangerous to chimpanzees) into HIV occurred 70 years ago, when deforestation and road construction began in Africa. Let's see which are the 8 most dangerous viruses that experts call the 'horsemen of the apocalypse'.
