Bulletin Today | Personal HealthWhen it comes to germy office-mates, some of us are spreading around more bacteria than others. We’re talking to you, gentlemen. A new study finds that surfaces in men’s offices are covered in 10 to 20 percent more bacteria than those in women’s offices, say researchers who swabbed chairs, phones, computer mice, keyboards and desktops in 90 offices in New York, San Francisco and Tucson, Ariz. Most of the bacteria came from the workers themselves, spread by coughing, sneezing and …