https://www.123articleonline.com/rss/author/295056/sabrina-russelArticles written by Sabrina Russel from 123ArticleOnline.comen-usCopyright (c) 123ArticleOnline.com All rights reserved. https://www.123articleonline.com/articles/1211884/communicable-disease-orgin The history of humanity is known for many cases of pandemic episodes. Cholera, smallpox, typhoid, malaria, tuberculosis, leprosy, influenza, and other diseases have been the reasons for pandemics over the centuries.