Official 5 Signs I’m Probably A Dragon I Hoard Useless Shiny Things I Eat Too Much I Sleep Too Much I Don’t Like Leaving My Cave Shirt
The COVID positive samples were inactivated with beta propiolactone (BPL) (to protect the dogs from getting sick). We are told that "dogs were provided both negative control samples with and without previous BPL treatment" but we have no idea how this was included in the study. How many negative samples had BPL? Were they presented with the same negative sample that didn't have BPL? Were they presented at the same time in one of the seven sniffing holes? How many of each sample were there? Does this mean there were additional options for the dog to select from regarding the same negative sample? All things that would bias this study quite a bit and we aren't told the numbers methods on any of it. Since ALL the positive samples had BPL and only SOME of the negative samples did, then perhaps the dogs aren't detecting the presence of COVID, but the presence of BPL.
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