国立アメリカ歴史博物館のインスタグラム(amhistorymuseum) - 2月24日 03時20分

This is a medical jet injector, also known as "the peace gun." It could administer painless injections without needles. Public health practitioners noted the method of vaccination was so painless that it could be used on a sleeping baby. ?

Best of all, the jet injector could hold 500 or more doses of vaccine, meaning hundreds of doses could be delivered in an hour. Though it was difficult to maintain, the jet injector played a crucial role in the early stages of the smallpox eradication program.

In 1980, the World Health Organization was able to announce: "Smallpox is dead!" This week, our #AmericaParticipates theme focuses on health—what we do to keep ourselves and each other healthy. ??? #MedHist #HistMed #MedTech @worldhealthorganization @cdcgov #EndPolio

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