This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infectious disease, Subject name: Pediatrics
Newborns have transplacentally acquired immunity against all of the following diseases except 
Select and explain. 
A. Measles, B. Peusis, C. Diphteria, D. Poliomyelitis
B: Peusis
Answer: B: Peusis 
Explanation: *Peussis is an acute highly contagious respiratory tract infection caused by BORDETELLA PEUSSIS . * Neither natural disease nor vaccination provides complete or lifelong immunity against peussis re-infection or disease. * Protection against typical disease begins to wane 3-5 yrs after vaccination and is unmeasurable after 12 yrs. Reference: Nelson textbook of pediatrics 21st edition Page 944