Yes.. Don't listen to these people. If you skin test positive for tb, you must have a yearly chest X-ray to make sure you are not active. Usually your employer will pay. Many people are tb skin test positive and never actually develop active tb. It only means that you have been exposed to tb at some point in your life.
Just because you tested positive doesn't mean you actually have TB. you need a chest X-ray to determine whether or not you have active TB. If you do, your local health department will provide you with medications. Once you start those you will be able to work in the Health care community.