BBC News
By Magnus Bennett
image copyrightGetty Images
Hundreds of millions of adults around the world can expect to be vaccinated against Covid over the next few months. It will be delivered by hypodermic syringe - but who invented it?
Most people with access to healthcare take vaccinations for granted.
The syringe that is now being used to provide protection against Covid may look simple enough - but appearances can be deceptive.
It took millennia to create the hypodermic syringe in a form that was to allow mass vaccinations to take place today.
An Irish surgeon, Francis Rynd, and French physician, Charles Pravaz, made a huge contribution to the field in the mid-19th Century.
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