This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunization, Subject name: Pediatrics
Dose of Human Rabies Immunoglobulin is: 
Select and explain. 
A. 10 IU/kg, B. 20 IU/kg, C. 30 IU/kg, D. 40 IU/kg
B: 20 IU/kg
Answer: B: 20 IU/kg 
Explanation: b. 20IU/kg(Ref: Nelson's 20/e p 3450, 1642-1644, Ghai 8/e p 202-203)Human rabies immunoglobulin (HRIG--dose is 20U/kg body weight, maximum dose 1500IU); andEquine rabies immunoglobulin (ERIG--dose is 40U/kg, maximum dose 3000IU)