Background

The vaccine is something that prevents and protects from viral diseases. Edward Jenner was the first person who produced the first vaccine in 1796. This first vaccine was produced to protect against smallpox. Jenner went deep and theorized cowpox (disease of animals) which was almost similar to smallpox. Then, after that, Jenner discovered a vaccine that came in the form of injection.  The development of vaccines starts in a research laboratory of a university or any biotech company rather than a pharmaceutical company. These institutions take the grant from the government or private foundations. They research a lot on it, after that, they send it for trials. It does first trials on animals than on the big animals like monkeys. After all this, it comes to human beings. Sometimes, it takes 5 years to 10 years. So, we can say that it takes a long time.