A member asked:

Dried up blood on fingernail from touching door can you get anything from this after washing your hands repeatedly ?

A doctor has provided 1 answer

Highly unlikely: Once the blood is exposed to air and dries, it is very unlikely to be able to transmit anything. In addition, if you don't have an open cut your already miniscule changes of contracting something go down even further.

Answered 12/14/2017

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