Carcinogenic potency of aflatoxin B1
For persons negative for hepatitis B virus: 0.01 case per year/100 000 people per ng of aflatoxin B1/kg body weight per day (range 0.002-0.03)
For persons positive for hepatitis B virus: 0.3 case per year/100 000 people per ng of aflatoxin B1/kg body weight per day (range 0.05-0.5); 30-fold higher than in the absence of hepatitis B surface antigen in the serum)