The sample that received a false positive was not part of the current recall, officials said.

The FDA issued an update on the cyclospora outbreak in the United States late Friday, confirming that a single supplier has been identified as the source.

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

We still don’t know the source of the outbreak.

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