1900, 1900 to World War II (WW II), and WW II to 2009. Significant distinct and overlapping trends in disease prevalence, availability of health care resources, social organizations, and the public's knowledge and perception of health and illness and technology. Disease Prevalence 1850 - 1900: Epidemics of Acute Infections These public health disasters were related to the congested and unsanitary food supply, sewage disposal,…
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