Mind you, this 1 in 10k risk is an estimate, and for safety reasons, a maximum estimate. Actual risk is likely much lower, as you have to touch contaminated su

Mind you, this 1 in 10k risk is an estimate, and for safety reasons, a maximum estimate. Actual risk is likely much lower, as you have to touch contaminated surface, then transfer the virus to nose, mouth or eyes. For public areas, properly worn masks help prevent part of the transfer too, by making it mechanically less likely, and giving more time for evaporation to inactivate the virus (e.g. by airflow) Fomite infection risk would be higher if a contaminated surface is brought to a presumed clean area, with low ventillation, with no additional precautions taken by people.