A New York hospital warned 4,247 people of potential exposure to 
hepatitis B, hepatitis C and HIV after authorities discovered a risk of 
potential blood contamination.
The Food and Drug Administration and the Centers for Disease
  Control both released strongly worded statements between 2009 and
  2012 following a rash of similar incidents at other hospitals
  that put more than 2,000 patients at risk. The agency warned it had become “increasingly aware of
  reports of improper use of insulin pens that must never be used
  on more than one person.”
Read the full article from RT  here. 
 

