How can I prevent viral hepatitis C infection?

Avoid blood. Hepatitis c is only passed by blood exposure. This includes tattoos with dirty needles, snorting cocaine, sharing razors and tooth brushes with patients with hepatitis c. There is no vaccine to prevent hepatitis c.
Avoid contact. You have to know the mode of transmission and avoid it as much as you ; mode of transmission include but not limited to blood transfusion, drug use, unprotected sex with an individual with hep c, possibly tattooing, needle sharing.