Hepatitis B and under category 6

Good day everyone! My husband was diagnosed as HEP B positive (Hbsag) and he is working here in abu dhabi for a year now under category 6. He was diagnosed before his surgery because it requires immunology before a surgery will be done. He is working in a restaurant. Today, a person from DEpartment of health called him and asked if his partner was already been tested. I am his partner and I am currently employed in a medical field which every year we have anti-HBs tests, and my test shows that I am still immune to the hep b. Maybe he got the disease on his workplace because if he had it before he went here in UAE, then on his medical last december 2017 it must shows he is hep b positive but its not. I just want to ask, if someone here was already been deported and if someone who is hep b positive received a call from department of health.. Hoping someone can give me answers. Thank you!