The deer tick, which feeds on white-footed mice, deer and other mammals, is responsible for transmitting the disease to humans in New England. The life cycle of the deer tick is presented in the figure above. Late Lyme disease symptoms may not appear until weeks, months or years after a tick bite. Lyme disease is treated with antibiotics. Taking appropriate preventive measures can decrease chances of being bitten by a tick.
Some insects bite because they use animal blood to make eggs when they reproduce.
Some also need to drink blood to grow. Ordinarily, insect bites are just a nuisance. Most people become very uncomfortable when insects are found crawling on them or flying around them. Outdoor activities can be disrupted. Some bites may actually cause pain.