I started to believe that when I was very young (around 16). It is something intriguing to think about. It is somehow logical on a certain level, since they have to fight for the same battleground, our body.
>>> ” It does seem to be the case that you cannot be sick with two viruses at once. A recent study from Yale University found that of 13,000 patients admitted to in a major hospital with respiratory diseases, practically no one ever had both a cold and the flu at the same time. In fact, lung tissue that had been previously exposed to the cold virus was immune to the flu virus.”