According to some studies, the influenza virus can stay alive on objects like keyboards, counters and doorknobs and can infect a person up to eight hours after being deposited on the surface. Keeping surfaces clean and disinfected can help stop the spread of flu. When cleaning a surface, use a combination detergent and disinfectant product, or use a cleaner first and then follow with a disinfectant. Use sanitizer cloths to clean computer keyboards, phones, remote controls, hand-held games, car door handles, steering wheels, gear shifts and other objects often shared with others. Thoroughly wash drinking glasses, eating utensils and tableware.