This new technology could allow needle-free injections

Researchers in the Netherlands are developing the 'Bubble Gun' which uses laser technology to deliver 'virtually painless injections'.

A puff of air could deliver your next vaccine (video) - American Chemical Society

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Materials for needle-free injection technology: What you need to know - Medical Design and Outsourcing

Vaccines can't be sprayed in 'chemtrails,' scientists say

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Preparing for mass vaccination

Current status and future prospects of needle-free liquid jet injectors

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