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
Post exposure prophylaxis is given in all except ? 
Select and explain. 
A. Rabies, B. Chickenpox, C. Measles, D. Typhoid
D: Typhoid
Answer: D: Typhoid 
Explanation: Ans. is 'd' i.e., Typhoid Post-exposure immunization Post exposure immunization is prophylactic immunization immediately after exposure to a pathogen, in order to prevent infection by the pathogen and the development of disease. Post exposure immunization is given for - Varicella (chicken pox) Measles Rabies Tetanus Hepatitis Meningococcal meningitis