serving papers should not require close physical contact
There is a guideline that says ebola does not manifest itself in perspiration until it is well underway and symptomatic.
That can explain family members being around someone for days uninfected, but then the most casual of contacts days later by someone else winding up an infection.
A doctor in Nigeria apparently contracted the disease from a patient near death when she never touched the patient other than with a gloved hand, and then only once to check his pulse. But a day or two earlier she had picked up an IV bag he knocked to the floor with an ungloved hand. Other docs/nurses around him much more often, but earlier in the disease progression, did not get infected.
Deputy hands his pen to exposed family members to sign papers, they sign and hand pen back and he then puts into his pocket.