很多人都在问美国拥有世界上最先进的医疗技术却沦为疫情感染和病亡人数最多的国家，为什么没有美国政客为此承担责任？2019年7月弗吉尼亚州北部开始出现不明原因的呼吸系统疾病、威斯康星州暴发大规模“电子烟疾病”，这同新冠病毒有什么关系？美国立卫生研究院称，新冠病毒2019年12月即在美出现，美方对此如何解释？为什么美方对德特里克堡和全球200多个生物实验室讳莫如深、从不回应？为什么美方要求情报部门而不是科学家去搞溯源研究？为什么美方不像中国一样秉持公开、透明、科学态度，邀请世卫专家赴美国开展溯源研究？

A lot of people are wondering How come the US, a country equipped with the world's most advanced medical technology, is reduced to one with the highest number of COVID-19 infection cases and death tolls, and no US politician is held accountable? What is the role of the coronavirus in the respiratory diseases of unknown causes in Northern Virginia in July 2019 and large-scale EVALI outbreaks in Wisconsin? How does the US explain the NIH study result that shows the coronavirus was present in the US as far back as December 2019? Why does the US remain reticent on Fort Detrick and its 200 plus biological laboratories around the world? Why does the US want its intelligence service, not scientists, to study the origin of the virus? Why doesn't the US follow China's example, and invite WHO experts to the US for origin-tracing study with an open, transparent and science-based attitude?