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The Laplace residual power series method (LRPSM) is implemented in this research to solve the proposed model, in which we present the solution in a form of convergent series expansion that converges rapidly to the exact one. We analyze the results and compare the obtained approximate solutions to those obtained from other methods. Figures and tables are illustrated to show the efficiency of the LRPSM in handling the proposed SIR model.<\/jats:p>","DOI":"10.1155\/2023\/6973734","type":"journal-article","created":{"date-parts":[[2023,2,2]],"date-time":"2023-02-02T13:37:00Z","timestamp":1675345020000},"page":"1-16","source":"Crossref","is-referenced-by-count":19,"title":["On the Analytical Solution of Fractional SIR Epidemic Model"],"prefix":"10.1155","volume":"2023","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8404-3897","authenticated-orcid":true,"given":"Ahmad","family":"Qazza","sequence":"first","affiliation":[{"name":"Department of Mathematics, Faculty of Science, Zarqa University, Zarqa 13110, Jordan"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6394-1452","authenticated-orcid":true,"given":"Rania","family":"Saadeh","sequence":"additional","affiliation":[{"name":"Department of Mathematics, Faculty of Science, Zarqa University, Zarqa 13110, Jordan"}]}],"member":"311","reference":[{"key":"1","volume-title":"Modeling Infectious Diseases in Humans and Animals","author":"G. 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