India are beginning trials of a new DNA vaccine against covid. Although initial data shows only 67% effectiveness, it has been heralded as a key moment in the fight against Covid. DNA vaccines are administered into the skin, without the need of an injection. The strand of viral DNA then trains the immune system to recognize the virus.
There are about a dozen DNA vaccines in the later stages of development, with many more in the early stages of development. Scientists believe the technology could be used to fight other diseases.
DNA vaccines have the advantage over RNA vaccines as they are quick to produce and do not require to be stored at the very low temperatures that RNA vaccines need.
Read More: Nature