This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
Dose of rabies immunoglobulin for post-exposure prophylaxis ? 
Select and explain. 
A. 10 IU/kg, B. 20 IU/kg, C. 30 IU/kg, D. 40 1U/kg
B: 20 IU/kg
Answer: B: 20 IU/kg 
Explanation: Ans. is 'b' i.e., 20 IU/kg Dose of rabies immunoglobulin (equine immunoglobulin) - 20 IU/kg body weight. Dose of F (ab)2 products - 40 IU/kg body weight.