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
High levels of HBeAg in serum indicates 
Select and explain. 
A. HBeAg is not seen in the serum, B. High infectivity of the virus, C. Low infectivity of the virus, D. Recovering stage
B: High infectivity of the virus
Answer: B: High infectivity of the virus 
Explanation: None