It is proven that atypical pneumonia can be transmitted through indirect physical contacts. Our hands will then be a risky medium to make oneself infected.
Smokers should pay extra attention on this issue. Just think about the way you start smoking: You open the flip top box, pick a cigarette at the filter WITH YOU FINGER TIPS and then PUT IT BETWEEN YOUR LIPS directly. It's highly possible that you put the virus directly into your respiratory system by this action if your hands touched whatever objects covered with such terrible virus.
THE SOLUTION: change you habbit a bit - incline the flip top box or softpack and let the cigarette drop slightly, hold the cigarette briefly with your finger without touching the filter and then pick the cigarette directly with your lips.
It's not an act to be cool, it's a safety precaution.