The most common reason for the disease to occur is the act of intimacy between two people. However, it does not always end up catching the disease. Any other close acts of communication like handshaking may lead to scabies as well in case one of the individuals is infected. The disease is rather contagious. Except for the sexual contact, one should watch his hygiene! The infected person may pass the mite via elements of wardrobe and personal hygiene like towels. In most cases, those who live under one roof are under the highest threat. That is why doctors recommend isolating the infected patients for a while. On the genetic level, kids may get it as the consequence of one of their parents being infected at least once.