Some people have no choice but to get in contact with animals, but this contact is accused of being the main cause of the emergence of new viruses. Novel and creative ways of thinking are needed to reveal the mystery of the reasons that led to the emergence of the viral epidemics and try to treat them. In our opinion, humankind has been exposed to viral pandemics or at least viral outbreaks in places where, and times when, humans have come close to achieving success in eliminating mosquitoes. And we think that the temporal and local linking between the most important mosquito elimination procedure (which is fighting malaria) and the occurrence of viral pandemics will help in answering many of the questions that have been asked about these pandemics. For viruses, "Species jumps", a jump between one host species and humans is one of the main steps in the emergence process. Not all mosquito bites are similar; three possibilities can occur to a human or animal after a mosquito bite depending on the mosquito's health status. We hypothesize that one category of mosquito bites stands as a front block against the "Species jumps". This blocking wall will fall if mosquitoes are eliminated which will open the way for new viruses to emerge. Our hypothesis assumes that mosquitoes are "natural vaccinators", as long as humans can get rid of insect-borne diseases in ways other than vector eradication.