This is why the MYDOSE product is needed. http://www.nj.com/healthfit/index.ssf/2015/10/eeuw_nurse_in_trouble_for_using_just_one_syringe_a.html http://consumer.healthday.com/infectious-disease-information-21/hepatitis-news-373/hepatitis-c-infections-in-hospitals-show-need-for-tight-infection-control-practices-696940.html