Ticks are often vectors for many different types of diseases. Some major tick-borne diseases include Lyme disease, Q fever, Colorado tick fever, Rocky Mountain spotted fever, African tick bite fever, Crimean Congo hemorrhagic fever, tularemia, tick-borne relapsing fever, babesiosis, ehrlichiosis, and tick-borne meningoencephalitis. In fact, some ticks can carry more than one disease at a time, and as a result, can infect a host with more than one pathogen simultaneously. Despite this terrible characteristic ticks have, they play an important ecological role by making weak animals sick and thus preventing overgrazing of plant resources. If you are to have tick on you, the best method of removing it is by freezing it off with a medical wart remover or something of the like.