By Erinn Bucklan, upwave.com Even if you're one of the many people who believe that exposing yourself to day-to-day germs is healthy for your immune system, it's still wise to take steps to protect yourself from the most infectious germs in your home. "Bugs like Escherichia coli (E.coli), salmonella and campylobacter can make you pretty sick or even kill you," says Douglas Powell, professor of diagnostic medicine and pathobiology at Kansas ...