This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: VBDs, Arboviral & Viral Infections, Surface Infections, Subject name: Social & Preventive Medicine
Rabies vaccine is prepared from:- 
Select and explain. 
A. Street viral strain, B. Fixed viral strain, C. Wild viral strain, D. Any of the above
B: Fixed viral strain
Answer: B: Fixed viral strain 
Explanation: Fixed Viral Strain is non pathogenic & does not have negri bodies , so its safer for production for Rebies vaccine. Vaccines and their strains: BCG - Danish / 331 Measles - Edmonston Zagreb Mumps - Jeryll Lynn strain Rubella - RA 27/3 YF - 17D JE Live - SA 14 -14 -2 C. Pox - Oka HIV - mVA ( Ankara) H1 N1 - California Mosquirix vaccine - S, S.