XPRIZE Rapid Covid Testing - Semifinalists Competition Letter and Shipping Authorization Official XPRIZE Rapid Testing Competition letter authorizing the shipment of blinded proficiency test kits to 219 semi-finalist teams across 35 countries, documenting that kits contain non-hazardous, non-infectious contrived samples including gamma-irradiated cell line products and synthetic RNA for research use only. primary file various xprize XPrize - Semifinalists and Competition Letter-Shipping.md various/xprize/XPrize - Semifinalists and Competition Letter-Shipping.md pdf CC BY 4.0 - https://creativecommons.org/licenses/by/4.0/ 1648 2216 gfile-url xfile-github-download-url pdf-gdrive-url pdf-github-url github-markdown-url github-markdown-download-url web-pdf-url web-slides-url youtube-url web-url