Dear Editor, An article entitled “, Cause Investigation of the Outbreak of Typhoid in Iran during 1320-1324 Hijri Shamsi”,has been published by the author Soleiman Heidari in the Journal of Research on History of Medicine in 2016(issue 5(3): 157-170). (Heidari, 2016, 157-70) Having read this paper with great interest, I found some issues worth to be reconsidered: 1. The author believes (page 159) that in the history of Persian medicine after Islam, Mohammad Ibn Zakaria Razi was the first scientist who wrote about “, motbeghe fever”,(typhoid). (Heidari, 2016, p. 159) But some historical resources show that there have been scientists who, in their discussions over different types of fever, have already referred to the issue of motabghe fever. For instance, Ali ibn Rabben Tabari in “, Ferdous al hekmeh fi al-Tibb”,has referred to “, sonakhus”,or “, motbeghe fever”,in a separate chapter, entitled “, Fi sonakhus and heya hami al-dam”, ...