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
Maternal antibodies do not occur for 
Select and explain. 
A. Polio, B. Whooping cough, C. Diphtheria, D. Tetanus
B: Whooping cough
Answer: B: Whooping cough 
Explanation: Infants are susceptible to Pertussis infection from birth because maternal antibody does not appear to give them protection.