Globally an estimated 170 million persons are chronically infected with HCV and 3-4 million persons are newly infected each year (WHO, 2009). The field of Public Health deals with identifying multiple risk factors, prevalence among the population, policy implementation of effective approaches and many community projects to deal with chronic diseases like Hepatitis C virus infection which is a large part of the contributing causes of deaths in the United States. Since there are many risk factors for acquiring the HCV infection in the United States, the leading practitioners specifically in the field of public health are very proactive in addressing these concerns. The study designs that have been critiqued in this paper provide diverse methods
