Tehran University of Medical Sciences Acta Medica Iranica 0044-6025 54 1 2016 02 01 4 8 EN Mohsen Rezaeian Department of Epidmeiology and Biostatistics, Occupational Environmental Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, Iran. 2016 01 18 2016 01 18 There are many published articles which cover current and future challenges of epidemiology. However, up until now, most of them are written by developed world epidemiologists. Therefore, despite a common use of assumptions, they did not have the opportunity to discuss the different range of practical tasks and priorities away from developed countries. The topics covered are; facing poverty, non-democratic government that has links to developed countries, man-made and natural disasters, handling low-quality data and accessing it, and finally improving contribution to the world epidemiological knowledge for the 21st century. https://acta.tums.ac.ir/index.php/acta/article/view/5380 https://acta.tums.ac.ir/index.php/acta/article/download/5380/4731