Ticks transmit disease through the process of feeding on hosts. Different tick species prefer different hosts and can even prefer certain hosts depending on whether they are in a larva, nymph, or adult life cycle stage. If the host the tick is feeding on has a bloodborne infection, the tick will ingest the pathogen (a virus, bacterium, or parasite) that caused the disease. After feeding, the tick will drop off the host. When the ticks feed on a different host, they transmit the pathogens they now carry by feeding upon a new host. Preventing exposure to tick bites is the best way to prevent tick-borne diseases.