It just takes one, and you know you have a problem. When you look at your counter or bathroom vanity and see a tiny ant scurrying around for food or water, you know it's not the only one. You need to ...

At a more micro level, the top five tick-infested cities in the U.S., in descending order, are New York City, Los Angeles, Philadelphia, San Francisco and Washington, D.C., according to the report.