CHIEF NOSE WETTER'S SARCASM DERIVED THROUGH THE BOTTOM OF A GLASS
Most likely not for testing the patient, but for testing the analyzer equipment to see if it's working properly.
Calibration tools, to check the results of the PCR test and validate them. One is guaranteed to produce a positive result, hence the biohaz label, and the other to produce a negative. If the PCR does not show a positive when the positive is run, it is a failure. If it produces a positive when the negative is run, it fails. See, not so hard. Now it just needs to be done for all of the voting this past fall - lots of failure there!
Those aren't test kits. They're controls. Controls are used to make sure the test kits work properly. Positive control should test positive for COVID and negative control should test negative.The positive control is a biohazard because it probably has COVID antigen in it.
Those are just the controls for the test. So, the results of the patient's sample need to be compared against the positive and negative controls to determine if the patient's sample is "positive" for covid, in this case. The covid test are still a bunch of bullshit, but the positive and negative controls are standard for this type of test. Just sayin'...
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