Live vaccine | Killed vaccine | Subunit vaccine | Gene vaccines |
---|---|---|---|
A living virus that has been weakened or attenuated. Alternatively, a similar virus that’s not dangerous. | A virus that has been killed, most often with formalin, so it can’t replicate. | A protein vaccine consisting of a part of a virus, such as its shell. | Injections of DNA or RNA information from a virus. Genes can be encapsulated in a nanoparticle or another virus. |
Available for: measles, influenza (children), smallpox | influenza (adults), polio | human papilloma virus, hepatitis B | Not widely available |