This is why it is so important to produce the test locally. The defective test were made in Korea, the same country where the governor of Maryland both them.https://www.infobae.com/salud/2020/06/29/retiraron-20-mil-tests-defectuosos-que-se-usaban-para-detectar-contagios-en-el-personal-medico/
"20 thousand defective tests removed that were used to detect COVID in medical personnel"
You go to hospital, to get a test to see if you had COVID only to be tested by a medical professional who doesn't know they if have COVID. Muy bien.
Maryland authorities were concerned about the US government seizing a shipment of COVID-19 tests and made special arrangements to receive and guard them.