July 2019
>mystery respiratory outbreak in Fairfax county retirement homes
>CDC tests for various viruses, all negative
>Fort Belvoir happens to be located in Fairfax County

https://www.washingtonpost.com/dc-md-va/2019/07/17/third-person-has-died-after-respiratory-illness-outbreak-greenspring-village-fairfax-officials-say/

August 2019
>Ft. Detrick totally shut down for breaches of containment
https://www.fredericknewspost.com/news/health/fort-detrick-lab-shut-down-after-failed-safety-inspection-all-research-halted-indefinitely/article_767f3459-59c2-510f-9067-bb215db4396d.html
later on in August,
>mystery respiratory outbreak hits vapers
>CDC again tests for various viruses, all negative
>happens in both vapes with and without vitamin E oil
>does NOT occur in European vapers, interestingly
>later on, it's found that vapers contract COVID 5x more easily
https://i.imgur.com/CGbjClf.png

October 2019
>Wuhan military games
>multiple athletes from multiple countries complained of a pneumonia-like illness after the event was over

November 2019
>teenage boy recovers from pneumonia
>then drops dead from a blood clot, in the middle of a soccer match
>textbook covid symptom
>his infection would have happened in late October
https://i.imgur.com/sqwzwEm.png

The US has an uninterrupted timeline of COVID-like illnesses circulating from July 2019 to November 2019. Many of these outbreaks were tested for common pathogens and came up negative.