aspg-21-592-1791468616 20261008141016 American Scientific Publishing Group admin@americaspg.com American Scientific Publishing Group International Journal of Neutrosophic Science IJNS 2692-6148 2690-6805 2020 10 2 C. Sankar Department of Mathematics, St. Joseph’s College of Engineering, Sholinganallur, Chennai, India R. Sujatha Department of Mathematics, Sri Sivasubramaniya Nadar College of Engineering, SSN-Centre for Radiation, Environmental Science and Radiation(SSN-CREST), Kalavakkam, Chennai, India D. Nagarajan Department of Mathematics, Hindustan Institute of Technology and Science, Padur, Chennai, India COVID-19 is pandemic affecting most of the country globally. It is an infectious disease that is affecting most of the people and it is very difficult to diagnose and treat the diseased patient. Generally asymptotic patients recover without any treatment. Patients with other illness such as Hypertension, Heart and Lung problems, Diabetic patients require intense care and treatment. In such cases, a team of doctors work together. The combination of all the experts’ opinions is needed for efficient treatment. Often, the opinion of doctors depends on their experience and involves some differences. Further, the expert’s opinion is in linguistic terms. Plithogenic sets provide a mathematical tool for aggregation of the experts’ opinion expressed in linguistic terms. Thus, this work aims to employ plithogenic neutrosophic number to rank the diseased patients affected with COVID-19. 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mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-fareast-language:EN-US;} 2020 116 125 592 https://creativecommons.org/licenses/by/4.0/ 10.54216/IJNS.0100205 https://www.americaspg.com/journal/21/article/592 https://www.americaspg.com/storage/1880.pdf