zh-cn	为什么说新冠病毒非常“狡猾”？ 
en-us	Why is the new coronavirus very " insidious"? 

zh-cn	问：为什么说新冠病毒非常“狡猾”？ 
en-us	Q: Why partner assistance is implemented in fighting COVID-19 in China? 

zh-cn	答：冠状病毒是自然界广泛存在的一类病毒，通常在鼠、猪、猫、犬、禽类等脊椎动物中传播，一定条件下可发生变异，通过中间宿主感染人类。
en-us	A: Coronaviruses are a family of viruses that exists widely in nature. It is usually transmitted in vertebrates such as mice, pigs, cats, dogs, birds and so on. Under certain conditions, coronaviruses can mutate and infect humans through intermediate hosts. 

zh-cn	新冠病毒是第七种已知可感染人的冠状病毒，相较于其他冠状病毒，其感染力更强、波及人群范围更广，并且十分狡猾。
en-us	The novel coronavirus, the seventh known coronavirus able to infect humans, is more infectious, more widespread, and more insidious than other coronaviruses. 

zh-cn	根据目前已知的新冠病毒信息来看，其狡猾性主要源于以下六个方面： 
en-us	According to currently known information of the novel coronavirus, its wiliness mainly comes from the following six aspects: 

zh-cn	一是存活能力强。
en-us	First, its survival ability is strong. 

zh-cn	新冠病毒能够适应各种不同的环境。
en-us	The novel coronavirus can adapt to a variety of different environments. 

zh-cn	通常室温条件可存活48小时，在适宜环境（如温度20°C、相对湿度为40%-50%）中，最长可存活5天。 
en-us	Normally, it can survive for 48 hours at room temperature, but in suitable environment (such as when temperature is 20 degrees Celsius and relative humidity is 40-50%), it can survive for up to 5 days. 

zh-cn	二是潜伏期长。
en-us	Second, its incubation period is long. 

zh-cn	新冠肺炎潜伏期通常为1-14天，多为3-7天 。
en-us	The incubation period of novel coronavirus pneumonia is usually 1-14 days, mostly 3-7 days. 

zh-cn	有研究显示中位潜伏期为4天，最长潜伏期可达24天 ，广州甚至出现潜伏期长达28天的病例。
en-us	Studies have shown that the median incubation period is 4 days, while the longest incubation period can last up to 24 days. Cases with incubation period of 28 days even appeared in Guangzhou. 

zh-cn	这表示一般的隔离周期不能完全保证被隔离者未被感染，可能导致患者被遗漏。 
en-us	This means that the normal isolation cycle could not completely guarantee that the quarantined people are not infected, which may lead to patients being omitted. 

zh-cn	三是传染源隐蔽。
en-us	Third, its source of infection is concealed. 

zh-cn	新冠肺炎存在具有传染性的无症状感染者， 研究显示无症状感染者比例为1.2% 。
en-us	There are asymptomatic infectious patients of novel coronavirus pneumonia. The study showed that the proportion of asymptomatic infections is 1.2%. 

zh-cn	这表示测量体温等常规传染病防控措施难以有效甄别患者，只能通过检测试剂确诊病例，可能导致大量潜在感染者混杂于健康人群中。 
en-us	This means that conventional measures to prevent and control infectious disease, such as temperature measurement, are not effective in identifying patients and can only be used to confirm cases through testing reagents, which may lead to a large number of potential infections mixed with healthy people. 

zh-cn	四是传播途径多样。
en-us	Fourth, there are various ways of transmission. 

zh-cn	呼吸道飞沫和密切接触传播是主要传播方式。
en-us	Respiratory droplets and close contact transmission are the main modes of transmission. 

zh-cn	还可通过黏膜传播，存在封闭环境气溶胶传播以及粪便和尿对环境污染造成气溶胶或接触传播的可能。
en-us	It can also be transmitted through mucosa membrane, with the possibility of aerosol transmission in closed environment and aerosol or contact transmission caused by fecal and urine pollution to the environment. 

zh-cn	这表示各类人群都可能在防护措施不足的情况下成为感染者。 
en-us	This means that all groups of people may become infected in the case of inadequate protective measures. 

zh-cn	五是易感人群普遍。
en-us	Fifth, its infection is widespread across population. 

zh-cn	由于新冠肺炎普遍易感，任何人都可能成为潜在的病毒携带者，因此难以根据其易感人群采取有针对性的局部防控措施，加大了防控难度。 
en-us	As the novel coronavirus pneumonia is generally susceptible, anyone may become a potential virus carrier, so it is difficult to take targeted local prevention and control measures customized for its susceptible population, which increases the difficulty of prevention and control. 

zh-cn	六是临床症状易与其他疾病混淆。
en-us	Sixth, its clinical symptoms are easily confused with other diseases. 

zh-cn	新冠肺炎早期症状不明显且与流感等常见的季节性传染病类似，导致患者容易被漏诊、误诊。
en-us	The early symptoms of novel coronavirus pneumonia are not obvious and similar to common seasonal infectious diseases such as influenza, leading patients to be omitted and misdiagnosed. 

zh-cn	但新冠肺炎后期病情发展极快，一旦转为重症病例救治难度极大。 
en-us	However, in the late stage of novel coronavirus pneumonia, the disease develops very fast, and once it is converted to severe cases, it is extremely difficult to treat.