Scientists in Germany say that tattoos could be the ideal way of delivering vaccines into the body.
The researchers say that in tests undertaken with mice, tattoos were much more effective in provoking a response from the immune system.
Tattoos could be a useful way of delivering therapeutic vaccines in humans, including for some cancers.
Such vaccines have often failed to produce the expected immune response when delivered using an injection.
Wednesday, February 6, 2008
Matt McGrath writes for BBC News: