The Brief The FDA is now saying the samples of lettuce that were collected from Taylor Farms that were linked to an outbreak of cyclospora, should be considered a false positive. At this time, there are no confirmed positive cyclospora samples collected. The U.S. Food and Drug Administration is now saying the samples of lettuce that were collected from Taylor Farms that were linked to an outbreak of cyclospora, should be considered a false positive. Sid MillerReviewed findingsFDA laboratory experts re-reviewed the sample results and have concluded that the finding does not represent true amplification and should be considered a false positive. However, at this time there are no confirmed positive Cyclospora samples collected.