Mr. SAWLIS: And it has to be high salty, brackish-type water, as opposed to our other friend, the housemosquito, which likes foul, stagnant water, high-polluted content.
In the time it took him to walk down his driveway in Fort Collins, Colorado, chat briefly with a neighbor and return to his house, Petersen got infected with a potentially serious mosquito-borne illness called West Nile virus.