The injury produced is almost entirely limited to the direct effects of the pests activity on people, such as annoyance, bites, stings, dermatitis and allergic reactions. Alaska's insects are not known to transmit disease-causing agents such as bacteria or viruses to humans. Proper care can minimize whatever health significance may be associated with these pests. The biting, blood-sucking diptera are Alaska's major pests. Prevention of discomfort or injury from these pests is largely up to the visitor.
Mosquito repellents are very effective.
Products that are effective around a camp, in a tent or camper, or on a boat are mosquito coils and candles containing citronella. Head nets and full suits of netting are also available. Until you have seen them first hand, you cannot possibly imagine how thickly they can swarm or how vicious the swarms can be. Simply put, if you aren't prepared, these two insects can totally and completely ruin your trip. Mosquito bites usually leave welts that itch for several days.