The urine tests are worthless for our purposes, if I remember correctly, and are only useful as a first test for some serious health issues. I actually have a ZRT saliva test kit I never used, but like you mentioned, it has you take saliva samples four times throughout the day. This is the one I have. Looks like they are harder to get now. The one I got was off Amazon and cheaper than this one. I'm sure because the FDA is continuing to watch out for all our best interests. It's so wonderful to have such a caring and wise government deciding things for us.
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