C. difficile diarrhea is largely a nosocomial disease and is the most frequent cause of diarrhea in hospitalized patients. Its occurrence in the outpatient setting, other than in patients confined to nursing homes, is much less common.
Darwin had arrived at a complete theory of evolution by 1839, but it was to be another 20 years before he published his ideas of evolution through natural selection in his epochal book On the Origin of Species by Means of Natural Selection.
British philosopher Herbert Spencer went a step beyond Darwin's theory of evolution and applied it to the development of human society. In the late 1800s, many Americans enthusiastically embraced Spencer's Social Darwinism to justify laissez-faire, or unrestricted, capitalism.In 1859, Charles Darwin published Origin of Species, which explained his theory of animal and plant evolution based on natural selection..ritish philosopher Herbert Spencer went a step beyond Darwin's theory of evolution and applied it to the development of human society. In the late 1800s, many Americans enthusiastically embraced Spencer's Social Darwinism to justify laissez-faire, or unrestricted, capitalism.