The results of many studies showed that the contaminative needles can spread more than 20 types disease including hepatitis B virus, hepatitis C virus, AIDS, and syphilis etc.

• 文献显示目前已知可藉由污染的针头传播之病原菌包括B型肝炎病毒、C型肝炎病毒、爱滋病、梅毒等20种以上。