Vaccines: How They Work and Their Processes
Vaccines are one of the most crucial discoveries worldwide because they are saving many people’ lives. In 1796, Edward Jenner discovered the first vaccine. He injected materials from a cowpox virus into an eight years old boy to save people from deadly outbreaks of the related smallpox virus and his experiment succeeded. How did this vaccine work? They are 4 main types of vaccines that are Live-attenuated, inactivated, toxoid, and subunit vaccines. Every type of vaccine is quite simple in terms of process. The process is that: 1- Foreign weak microbes invade the body 2- Our immune system triggers a series of responses 3- Immune system identifies and remove them from the human body 4- B and T cells are fight the microbes and also record information about the microbe 5- Immune system creates the memory about how best to fight them 6- If the same microbe invades the body, our system w...