W38 AJR:206, January 2016 Letters AJR 2016; 206:W38 0361–803X/16/2061–W38 © American Roentgen Ray Society Chest Radiographs of the Acute Middle East Respiratory Syndrome Coronavirus The report on chest radiographs of the acute Middle East respiratory syndrome coronavirus (MERS-CoV) is very interest- ing [1]. Das et al. [1] concluded that “ground- glass opacity in a peripheral location was the most common abnormality noted on chest radiographs.” In fact, the imaging diagnosis of MERS-CoV is extremely challenging. Not only chest radiography but also CT can be used as a tool for the diagnosis of MERS-CoV [2]. In fact, knowledge about the diagnosis of MERS-CoV, as a new emerging disease, is presently limited [3]. Most available data are from specific severely ill patients. How- ever, the exact range of clinical features of MERS-CoV is very wide, from asymptom- atic to severe symptomatic infection [4, 5]. For the asymptomatic or mild case, differ- ent patterns of findings on chest radiographs can be expected; as a result, the possibility of MERS-CoV in these cases can be easily forgotten by practitioners. Beuy Joob Sanitation Medical Academic Center Bangkok, Thailand