Chin Chuan-chun, an associate professor in the Graduate School of Public Health at National Taiwan University, says on the other hand that the methods for determining whether or not an infectious disease is "epidemic" are mainly comparisons with the incidence of illness the previous year.
台灣大學公共衛生研究所副教授金傳春則表示，判斷傳染病是否「流行」的方法，大多是和前一年的病例數做比較。