my wife has a depressed immune system, similar to you.
Alot of my concerns derive from this.
I certainly dont want to bring back things to pass onto her.
Additionally, some years ago I had a job that only gave me 3 sick days a year. So, instead of being content to get 3 colds and 1 flu a year, with 5-7 days off work for all these things(anything in excess of 3 days off from work not paid). I decided to proactively take things in my hands(also a pun), and be more careful about where I put my hands. The counter at a fast food joint where everyone lines up, and has a chance to sneeze, cough, etc. Dont put your hands down there, dont shake hands in church, prefer in hand communion over on the tongue, etc. etc.
She, like me, doesnt shake hands, but finds herself sometimes doing it....consequently she wears cotton or cloth gloves(wool?) to mass at times.
We also go to a church, where they have a ‘Stand Up and Greet’ others at the beginning of mass. Crud! Shake hands twice in a Mass, twice as many people miffed! Me refusing to shake hands in church is not only oft-putting depending on the church, but it makes me uncomfortable as well..but I am mostly used to it.
I'd say no. Even under ideal circumstances (ie: someone who's perfectly healthy, non-repressed immune system such as mine) why would any thoughtful, reasonable, intelligent person want to subject others to the risk of contracting Hep-A?
If one knowingly has a communicable disease they have an obligation to others to take precautions not to spread it.
To me that's just common sense.
How about the counter at the PHARMACY!!!!!