I was reading a USDA news release that pointed out that inconclusive results are a normal component of screening tests, which are designed to be extremely sensitive so they will detect any sample that could possibly be positive.
It has been 41 weeks since the USDA increased testing using the rapid tests. Since then we have seen 3 "inconclusive" tests or an average of one every 13-14 weeks. It has been 16 weeks since the last "inconclusive" test. The USDA is overdue. We should be expecting some news from south of the border any day now.
The U.S. cannot dodge a bullet every time they get one of these "inconclusive" tests. Given that the animal must be tested "inconclusive" which really means positive twice before any announcement is made it becomes more and more probable that one of the "inconclusive" tests will be found to be a case of BSE,even considering the watered down testing the U.S. is doing.
When these same rapid tests are done on the Canadian side of the border "inconclusive" turned out to be BSE positive both times. It is bizarre that the accuracy of the rapid tests is different on the north side of the 49th parallel than on the south side.
For updates on U.S. testing see:
http://www.aphis.usda.gov/lpa/issues/bse_testing/test_results.html
It has been 41 weeks since the USDA increased testing using the rapid tests. Since then we have seen 3 "inconclusive" tests or an average of one every 13-14 weeks. It has been 16 weeks since the last "inconclusive" test. The USDA is overdue. We should be expecting some news from south of the border any day now.
The U.S. cannot dodge a bullet every time they get one of these "inconclusive" tests. Given that the animal must be tested "inconclusive" which really means positive twice before any announcement is made it becomes more and more probable that one of the "inconclusive" tests will be found to be a case of BSE,even considering the watered down testing the U.S. is doing.
When these same rapid tests are done on the Canadian side of the border "inconclusive" turned out to be BSE positive both times. It is bizarre that the accuracy of the rapid tests is different on the north side of the 49th parallel than on the south side.
For updates on U.S. testing see:
http://www.aphis.usda.gov/lpa/issues/bse_testing/test_results.html
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