A lot of people think that JavaScript is a sort of simplified version or spin-off of Java. But in fact the similarity of the names is a coincidence, and the two are unrelated except that both are used to write computer programs that can run inside a web browser.
A vaccine is a medication, usually made from something that is or was alive, that gives immunity to a particular bacterial or viral disease. vaccine is a medication, usually made from something that is or was alive, that gives immunity to a particular bacterial or viral disease.
Four types of vaccines are currently available: 1  Live virus vaccines use the weakened (attenuated) form of the virus. 2  Killed (inactivated) vaccines are made from a protein or other small pieces taken from a virus or bacteria.  Toxoid vaccines contain a toxin or chemical made by the bacteria or virus.