Vaccines are traditionally administered with a needle, but this isn’t the only way. For example, certain vaccines can be delivered orally, as a drop on the tongue, or via a jet-like device.
Vaccines that appear particularly suitable to needle-free technology are DNA-based ones, including a COVID-19 vaccine being developed in Australia.
Needle-free vaccines are attractive as they cause less pain and stress to people with needle phobias. But they have other benefits.
