FINALLY, A USE FOR THAT WEIRD ART FORM

Hell's Angels may have been of some use

"Now researchers in Germany say that the rapidly vibrating tattoo needle could be a useful way of delivering vaccines under the skin instead of insoluble ink.

In studies with mice, tattooing a vaccine produced 16 times more antibodies than a simple injection into muscle tissue.

The level of antibodies indicates the strength of the immune system's response.

Dr Martin Mueller, one of the researchers behind this work, says that the greater damage to the body caused by the tattoo needle may explain the better immune response."