In many ways the biology of S. Gallinarum infection is more akin to S. Typhimurium infection of the mouse than the chicken. In common with S. Gallinarum in the chicken, murine infection with S. Typhimurium results in a severe systemic 'typhoid-like' infection.
Full Text. The Progressive Era was a period of widespread social activism and political reform across the United States, from the 1890s to 1920s. The main objective of the Progressive movement was eliminating corruption in government. The movement primarily targeted political machines and their bosses.
The Progressive Era spanned the years from 1890 to 1920 when the United States was experiencing rapid growth. Immigrants from eastern and southern Europe arrived in droves. Cities were overcrowded, and those living in poverty suffered greatly.