These lines needs to be corrected in "Epidemic Model" This line is not making sense. "Therefore, an infected individual makes contact and is able to transmit the disease with \beta N others per unit time and the fraction of contacts by an infected with a susceptible is S/N. "

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We at Wikipedia love evidence-based medicine. Please cite high-quality reliable sources. We typically use review articles, major textbooks and position statements of national or international organizations. A list of resources to help edit such articles can be found here. The edit box has a build in citation tool to easily format references based on the PMID or ISBN. WP:MEDHOW walks through editing step by step. We also provide style advice about the structure and content of medicine-related encyclopedia articles. The welcome page is another good place to learn about editing the encyclopedia. If you have any questions, please feel free to drop me a note. Doc James (talk · contribs · email) 16:10, 19 April 2015 (UTC)Reply