2019年7月美国ABC News等媒体报道，神秘病毒在佛吉尼亚州Fairfax County的一个Retirement Center 导致63人罹患肺炎等呼吸系统疾病，3人死亡。症状： 发热，咳嗽，身体疼痛，气喘，浑身无力：
https://abcnews.go.com/US/respiratory-outbreak-investigated-retirement-community-54-residents-fall/story?id=64275865
https://wamu.org/story/19/07/11/two-dead-others-hospitalized-in-virus-outbreak-at-fairfax-county-retirement-community/
https://wjla.com/news/local/mystery-virus-greenspring-retirement-cdc-va 6park.com
大约三星期后，距该退休中心 45 miles 处的美军病毒实验室被CDC关闭，原因是该病毒实验室在污水处理等方面存在安全漏洞：
https://www.the-scientist.com/news-opinion/cdc-shuts-down-army-labs-disease-research-66235
https://www.armytimes.com/news/your-army/2019/08/08/the-cdc-shut-down-an-army-lab-thats-working-on-an-ebola-vaccine/
https://www.cnbeta.com/articles/tech/876297.htm 6park.com