Hand washing can reduce risk of catching a cold ; not as helpful against infection . H1N1 virus not stable on hand ; instead it thrives in droplets of water . Any airborne particles , from cough or sneeze , results in a bigger dose of infection . Regardless , washing hand ` ` really is wonderful '' for preventing many diseases .
Hand washing can reduce risk of catching a cold ; not as helpful against H1N1 . H1N1 virus not stable on hand ; instead it thrives in droplets of water . Inhaling airborne particles , from cough or sneeze , results in a bigger dose of virus . Regardless , washing hands `` really is wonderful '' for preventing many diseases .