This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable diseases, Subject name: Social & Preventive Medicine
Which of the following is a live attenuated bacterial vaccine 
Select and explain. 
A. BCG vaccine, B. OPV, C. Hib Vaccine, D. Peusis vaccine
A: BCG vaccine
Answer: A: BCG vaccine 
Explanation: BCG for tuberculosis is a live atteunated bacterial vaccine OPV is against polio caused by polio virus. OPV is a live atteunated viral vaccine Hib vaccine is a glycoconjugate vaccine Peussis vaccine is a killed whole organism vaccine Ref : Park&;s Textbook of preventive and social medicine; 24th edition; Pg no.108