It would be nice to eliminate mouse and keyboard inputs and as such eliminate the asepsis issues associated with these devices by using a touch screen. This seems like an elegant solution but in practice it is problematic and pricey. The user has to be sitting in front of the touch screen monitor. Fine mouse type movements are very difficult. When keyboard input is needed the only option is an on-screen keyboard which is awkward to use.
Finally, after all that the user still needs to touch the screen so there is still an asepsis issue. Spraying and wiping a touch screen is no more desirable than spraying the keyboard.
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