Making vaccines
Once scientists choose a type of vaccine to build, they need to decide how to produce the vaccine. Just like any product, the vaccine needs to be assembled in a particular way and made in sufficient quantities so that it can be delivered to the millions of people who need vaccines. The production of vaccines is usually done in a living organism or a group of cells. Because cells contain the cell parts needed to read the DNA instructions and create proteins, they are perfect “factories” to create vaccines.