The FDA backpedaled on a positive Cyclospora test result, but the agency says iceberg lettuce remains a suspect.

Produce supplier Taylor Farms is recalling iceberg lettuce shipped to 27 US states because of potential contamination with cyclospora, the parasite causing thousands of cases of…

Taylor Farms de Mexico lettuce sample tested positive for cyclospora, FDA said, as officials investigate a multistate outbreak of the parasite.

As of Sunday, the FDA said there are no confirmed positive sample results for Cyclospora.

The FDA announced a positive cyclospora result for Taylor Farms’ iceberg lettuce on Saturday, but later declared it a false positive.