.ad-slot-no-title:before { display: none; } <iframe src="https://www.googletagmanager.com/ns.html?id=GTM-M6LKQZ" height="0" width="0" style="display:none;visibility:hidden"></iframe> When the Public Feared That Library Books Could Spread Deadly DiseasesBy Joseph Hayes smithsonian.com August 23, 2019 “The great book scare” created a panic that you could catch an..