When I called the lab I specifically asked about false positives. He said it's there or it isn't. No false answers.
The blood can be as small as a few drops. I trimmed a toe nail to short and dropped it onto a coffee filter. Put it in a ziplock bag and mailed it.
My understanding from what the lab told me is that a lot of things look alike on necropsy. And Mareks is the cancer of webMD in the chicken world.
I do recommend calling them. Then you can form your own opinion. The test is $20.
The blood can be as small as a few drops. I trimmed a toe nail to short and dropped it onto a coffee filter. Put it in a ziplock bag and mailed it.
My understanding from what the lab told me is that a lot of things look alike on necropsy. And Mareks is the cancer of webMD in the chicken world.
I do recommend calling them. Then you can form your own opinion. The test is $20.