1 janv. 1916 - Polio epedemic in U.S.
Description:
27,000 cases in US;<6,000 deaths, most under 5 years of age. unclear how it spread -no way to protect against it. created panic because of threat of disability; paralysis. low fatality rate. infantile paralysisAjouté au bande de temps:
Date:
1 janv. 1916
Maintenaint
~ Il y a 109 ans