There have been studies of influenza that suggest nearly 100% of all transmission occurs through coughing & sneezing and inhaling the output. To a close approx

There have been studies of influenza that suggest nearly 100% of all transmission occurs through coughing & sneezing and inhaling the output. To a close approximation, handwashing does exactly zero to stop it from spreading. Scientists seem to think the same is likely true for SC2. Which isn't to say you shouldn't wash your hands, because there are other things you get on your hand which can make you ill. It means keep the damn mask on, and don't take it off until you're well out of range of other people.