Hepatitis C — Worldwide/Unknown
Hepatitis C virus (HCV) infection is the most common blood-borne infection in the USA, with approximately 3 million persons living with current infection (1). Percutaneous exposure to contaminated blood is the most efficient mode of transmission, and in the USA, injection drug use (IDU) is the primary risk factor for infection. State surveillance reports from the period 2006-2012 reveal a nationwide increase in reported cases of acute HCV infection, with the largest increases occurring east of
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