since 1977 , 50 children with tuberculosis have been treated with rifampin , 10 to 20 mg/kg , and isoniazid , 10 to 20 mg/kg daily for one month followed by 10 to 20 mg/kg of rifampin and 20 to 40 mg/kg of isoniazid twice a week for another 8 months .
C0041296
tuberculosis
C0022209
twice