The first thing we should do is define hantaviruses as not many people are aware of this phenomenon. Any doctor will say that it is a rather serious and often life-threatening form of the virus, which is the result of inhaling the infectious elements. It is passed via respiratory way. It makes the condition even more dangerous as it is impossible to detect the virus in the air with the naked eye. Most of the people risk catching this infection when having direct contact with the carriers.