This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Maternal and child care, Subject name: Social & Preventive Medicine
Which of the following vaccines is Contraindicated during pregnancy? 
Select and explain. 
A. Hepatitis B vaccine, B. Varicella vaccine, C. Influenza vaccine, D. Tetanus toxoid
B: Varicella vaccine
Answer: B: Varicella vaccine 
Explanation: Live attenuated vaccines are contraindicated in pregnancy.Some examples of live attenuated : Viral: MMR vaccine, chicken pox vaccine, smallpox vaccine, oral polio vaccine (Sabin), rotavirus vaccine, and yellow fever vaccine.Bacterial: BCG vaccine,typhoid vaccineNote: Recently live attenuated influenza vaccine came into use, given as nasal spray.