Prior articles from March on tainted test kits
Scoop: Lab for coronavirus test kits may have been contaminated (March 1)
https://www.axios.com/cdc-lab-coronavirus-contaminated-6dc9726d-dea3-423f-b5ad-eb7b1e44c2e2.html
Coronavirus test kits could be contaminated after FDA scientist found 'alarming' impurities in the lab where they were made as CDC officials launch investigation into 'defects' there (March 2)
https://www.thedailybeast.com/coronavirus-test-kits-have-been-contaminated-with-coronavirus-says-report
Coronavirus Test Kits Have Been Contaminated With Coronavirus, Says Report (March 31)
https://www.thedailybeast.com/coronavirus-test-kits-have-been-contaminated-with-coronavirus-says-report
articles on fake/flawed test kits
Some coronavirus test kits shipped around US are flawed, CDC claims (Feb 13)
https://nypost.com/2020/02/13/some-coronavirus-test-kits-shipped-around-us-are-flawed-cdc-claims/
Fake coronavirus test kits seized at LAX (March 14)
https://ktla.com/news/local-news/fake-coronavirus-test-kits-seized-at-lax/
China launches investigation into company behind faulty coronavirus test kits sold to Spain (March 27)
https://www.foxnews.com/world/china-launches-investigation-into-bioeasy-maker-of-faulty-coronavirus-test-kits-sold-to-spain
Pence says faulty CDC coronavirus test kits were fixed in early February (April 19)
https://www.cnbc.com/2020/04/19/pence-says-faulty-cdc-coronavirus-test-kits-were-fixed-in-early-february.html