Then, when the AIDS epidemic broke out, these teams were repeatedly consulted by others who were eager to adopt the same techniques
दुसरी गोष्ट म्हणजे १९७० नंतरच्या वर्षांत रक्‍तसंक्रमित हेपाटायटिसच्या रुग्णांची संख्या उत्तरोत्तर वाढू लागली.