First before you go through this exercise and potential lifestyle changing ideas, you are basing all you questions on a likelihood but one that is really unknown. You may not be
HPV 16 positive.
No treatment for
HPVTest your next cervical swab with the Digene test the CDC recommends. NO test available for your husband. There is no oral test, except on biopsied tissue right now that is practical. There are swish collection systems, but no guarantee where all the cells are coming from and therefore there are no for sure ways of testing the mouth.
No one knows, and it is different in different people, some might be forever, some might be years, smoe months. (You really should take the time to read all the stuff on the OCF
HPV page).
Unknown
Yes
Intimate contact - cell to cell contact not fluids
Not known, but easy enough since it is the most common sexually transfered virus in the world
Yes
Unknown, despiete what logic dictates.
No
No.
Even if you are contagious, there is no way of knowing if your husband is a person that the virus will persist in or not. No persistence, no malignancy. So no scientific answer to your question.
What we know is far outweighed by what we don't. Your OCF donations go to research that is looking into all this. Just gave a new grant to Gillison today. Now read all the PDF documents on the OCF
HPV page, and the page itself.