Leishmania transmition

Hi all. im concernd about the possible transmision of Leishnania / parvo from infected dogs, as i sometimes foster / work with them, I always wsh hands and never with any scatch or wound on me,

this queston has bugged me for some time now as i do quite alot of volentary work when i can at the local dog shelter??

but if we are autoimune deficiet???

Thanx julien…