United States Immigration Policy toward Mexico: An Historical Perspective

The United States in Historical Perspective

West Nile Virus in the United States — A Historical Perspective

Prior to 1999, West Nile virus (WNV) was a bit player in the screenplay of global vector-borne viral diseases. First discovered in the West Nile District of Uganda in 1937, this Culex sp.-transmitted virus was known for causing small human febrile outbreaks in Africa and the Middle East. Prior to 1995, the last major human WNV outbreak was in the 1950s in Israel. The epidemiology and ecology of...

Pellagra in the United States: a historical perspective.

Pellagra was in existence for nearly two centuries in Europe before being recognized in the United States, where it was first reported in 1902. Over the next two decades, pellagra occurred in epidemic proportions in the American South. Poverty and consumption of corn were the most frequently observed risk factors. Since the exact cause and cure of pellagra was not known, a culture of "pellagrap...

Dialysis Therapy in the United States: A Historical Perspective.

Companion Animal Demographics in the United States: A Historical Perspective

concerns relating to companion dogs and cats in the United States but one of the more pervasive is the “pet homelessness,” “pet overpopulation,” or “pet surplus” problem. These widely used terms may discomfit some in the animal shelter community. Some of the terms can be misleading in that their use implies that the problem—however it is couched—could be solved simply by reducing the number of ...