1 янв 1916 г. - Polio epedemic in U.S.
Описание:
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 paralysisДобавлено на ленту времени:
Дата:
1 янв 1916 г.
Сейчас
~ 109 г назад