Step 1: Download this document from FDA website:
https://www.fda.gov/media/134922/download
Step 2: Control-F search document for search term 'virus isolates'.
Step 3: Comprehend the implications of the search result:
Since no quantified virus isolates of the 2019-nCoV were available for CDC use at the time the test was developed
and this study conducted, assays designed for detection of the 2019-nCoV RNA were tested with characterized stocks of in vitro transcribed full length RNA of known titer (RNA copies/μL) spiked into a diluent consisting of a suspension of human A549 cells and viral transport medium (VTM) to mimic clinical specimen.
And had his mind systematically splintered with each alter placed under the control of a different high-ranking territorial spirit …
Larger Minority in U.S. Says Some UFOs Are Alien Spacecraft
August 20, 2021
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View that some UFOs are alien spacecraft is up eight points since 2019
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Belief up more among college-educated than those with no college education
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Adults 55 and older more likely than younger adults to be skeptical
More Americans are taking UFOs seriously than just two years ago. When asked which of two theories better explains UFO sightings, 41% of adults now believe some UFOs involve alien spacecraft from other planets, up eight points from 33% in 2019. Half of Americans, down from 60% in 2019, remain skeptical, saying all UFO sightings can be explained by human activity or natural phenomena. Another 9% are unwilling to venture a guess.
The recent change spans a period when UFOs have received significant coverage in mainstream news publications. This includes a spate of articles in 2019 focused on leaked footage of mysterious flying objects taken by Navy pilots. While the Department of Defense has not suggested these or any UFOs involve alien visitors, the Navy has acknowledged the leaked video is authentic, and in 2020, it commissioned a task force to study "unidentified aerial phenomena" (UAP).
The latest Gallup results are based on a telephone poll conducted July 6-21. This was less than a month after the Office of the Director of National Intelligence issued its preliminary report on UAPs, stating that the various types of incidents examined likely fall into one of five categories: "airborne clutter, natural atmospheric phenomena, [U.S. government] or U.S. industry development programs, foreign adversary systems and a catchall 'other' bin." The 2019 survey was conducted Aug. 1-14, several months after the Navy UFO footage was first leaked.
https://news.gallup.com/poll/353420/larger-minority-says-ufos-alien-spacecraft.aspx