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The biggest obstacle for researchers who study hepatitis is the risk of acquiring the disease. For example, if they are studying a blood sample, they must wear gloves and mask and not have open cuts on their skin. They must also work with "live" germs so the risk of contracting the disease they are studying is increased. A third obstacle is that hepatitis has many different causes. For example, the way they conduct research may need to be different if studying how IV drug users contract the disease, vs. a patient who contracted hepatitis after being in the hospital and having surgery.
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