Q- Why the making of anti-viral vaccines is difficult?
Answer- There are several factors that are responsible for the difficulties faced by scientists in making an anti-viral vaccine. Some of the main factors that make the formation of an anti-viral vaccine more difficult are as follows:
1. Viruses are too complex as compared to bacteria so that it is difficult for scientists to search DNA blueprint of virus that helps in studying that virus properly to make its vaccine.
2. Viruses have fewer biochemical pathway and they cannot be cultivated in vitro.