These are the ones that come to mind. Hope it helps!
HIV/AIDS
Hepatitis B
Hepatitis C
They have <span>difficulty swallowing. </span>
True. It works the
shoulders. However it can also work the
upper back muscles as well. It all
depends on the grip that you have.
Narrow grips work the upper back and shoulders while wider grips works
the shoulders. It all depends what you
want to develop with this exercise.