污污草莓视频

Professor Jay Kaufman, of the Department of Epidemiology, Biostatistics and Occupational Health authored a recent New York Times opinion piece.

"In the winter of 1848, a 26-year-old Prussian pathologist named Rudolf Virchow was sent to investigate a typhus epidemic raging in Upper Silesia, in what is now mostly Poland. After three weeks of meticulous observation of the stricken populace 鈥� during which he carefully counted typhus cases and deaths by age, sex, occupation and social class 鈥� he returned with a 190-page report that ultimately blamed poverty and social exclusion for the epidemic and deemed it an unnecessary crisis. 鈥淚 am convinced that if you changed these conditions, the epidemic would not recur,鈥� he wrote."