calm down
They shouldn't not do this, because America has very good regulations to protect against all types of discrimination. Ordinary types of works should not disseminate the disease, it is a blood born pathogen;
However, everybody who has not been vaccinated and who has not been exposed should be vaccinated - the vaccine is execellent providing 100% protection (however, Chinese have a very high exposure and infection rate, probably more than 50% have already developed protective antibodies due to insidious infection)
1) They will notify public health agency, but the information is considered confidential
2) Public health agency should send you a booklet containing advises to you.
3) Do not worry -- but try to do a very good job not to expose others to your blood etc.
4) If you are a female, you baby should be vaccinated differently from regular pregnant woman.
5) If your liver function is normal, usually, you don't need to be treated, b.c. all drugs have a potential to damage liver actually. Agressive treatment might not be a good idea.
6) Do not drink alcohol, which will further damage your liver, and try to have a regular less stressful life... I know this is hard, but try.
7)I works in healthcare.