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.
Sometimes vaccines are called immunizations, needles or shots. Here's how vaccines work: 1  Most vaccines contain a little bit of a disease germ that is weak or dead. 2  Vaccines do NOT contain the type of germ that makes you sick. 3  Some vaccines do not contain any germs.