Answer
This research is unethical, because some of the subjects were infected with hepatitis, which may lead to their death or serious consequences for the rest of their lives.
This study should not be allowed even though it may have some useful results, because this is at the price of lives and serious consequences for some of the subjects.
Work Step by Step
This research is unethical, because some of the subjects were infected with hepatitis, which may lead to their death or serious consequences for the rest of their lives.
This study should not be allowed even though it may have some useful results, because this is at the price of lives and serious consequences for some of the subjects.