International Journal of Preventive Medicine (Int J Prev Med)2008-780211720200909Preventive Measurement against COVID‑19 Spreading: Immigration Cessation, Office Closing, and Holiday Postponement—Simulation Analysis20087802ENHonorary Professor, Dr. DY Patil University, Pune, Maharashtra & Visiting Professor, Hainan Medical University, Haikou & Adjunct Professor, Joseph Ayobabalola University, Ikeji-Arakeji, NigeriaPrivate Academic Consultant, Sanitation 1 Medical Academic Center, Bangkok20200909Dear Editor,<br />Worldwide spreading of coronavirus disease (COVID‑19) becomes an emergency problem globally. The control of disease needs good policy planning and the policies have to be properly adjusted to contexts in each setting.http://ijpm.mui.ac.ir/index.php/ijpm/article/view/2293http://ijpm.mui.ac.ir/index.php/ijpm/article/download/2293/717718135