Because of the diseases they can carry, mosquitoes often top lists of the most dangerous animals on earth. Even disease-free mosquitoes inflict bites that cause red bumps and irritated, itchy skin. If you feel as if you suffer from more bites from these blood-suckers than most, you may be living in a mosquito-infested state. This video shows the ten most mosquito-infested states in the U.S., and offers tips on how to keep from being bitten.