[Zhong Nanshan interprets the incubation period of up to 24 days. Only 1 of the 1099 samples is 24 days] On the 11th, Zhong Nanshan responded to the recent media reports that "Zhong Nanshan's latest paper found that the incubation period of new coronary pneumonia can reach up to 24 days." He said that the article about our team's clinical characteristics of 1,099 patients with COVID-19 was provided by 552 hospitals in 30 provinces, autonomous regions and municipalities across the country. The research team conducted a comprehensive analysis of the clinical characteristics of patients. This article is a preprinted version, and the preprinted version requires more peer opinions. According to the official requirements of the preprinted version, its information cannot be cited by the media, nor can it guide the clinical practice, and must be reviewed by peer. In the incubation period in the preprint plate, we have a statistical method that records it based on the patient's oral statement. We calculate it based on the patient's time of contact with the source of infection and the time when the symptoms first appear, with the longest being 24 days. But in fact, there was only 1 patient who was actually described for 24 days, which means that there were only 1 out of 1,099 cases. Taking the time reported by this only 1 patient as the longest incubation period of the disease is not scientific enough. There are also precedents of other diseases in the past, such as rabies. Our study shows that the median for the incubation period of all patients is 4 days. In addition, we will report the interquartile spacing in this article, which is 2 days and 7 days respectively (i.e., the gap is 5 days), which more scientifically reflects the overall situation of the population. Therefore, some information about unpublished articles should not be over-interpreted. (CCTV reporters Gong Haiquan Chen Xuting)
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