FDA Stories #031 — Repeated Salmonella Findings Put Mexican Papayas Under a Countrywide FDA Import Alert

Short answer: FDA established Import Alert 21-17 after outbreak and sampling evidence showed widespread Salmonella contamination in fresh papayas from Mexico. The alert permits detention without physical examination of raw, fresh Mexican papaya unless the grower and relevant supply-chain firms qualify under its Green List provisions.

This article summarizes public FDA records and an industry letter. Firms appearing in the alert are not identified as FDABridge clients. The alert applies to whole fresh papaya, not processed papaya that is cut, sliced, canned, or jarred.

What evidence led FDA to act on Mexican papayas?

From May 12 through August 18, 2011, FDA found Salmonella in 33 of 211 samples of raw, fresh whole papaya imported from Mexico — a 15.6 percent positive rate. FDA said the positive samples involved 28 firms and nearly all major Mexican papaya-producing regions.

At the same time, a multistate Salmonella Agona outbreak infected more than 100 people. Traceback and testing associated the outbreak with papaya from at least one Mexican grower and shipper. FDA concluded that the outbreak and elevated sampling rate were extremely unlikely to be random contamination events and that the papayas appeared adulterated under section 402(a)(1).

Why did the papaya concern continue beyond one outbreak?

In an August 2019 letter to the papaya industry, FDA said it was aware of eight Salmonella outbreaks since 2011 tied to imported fresh papaya. At that time, the first seven outbreaks accounted for almost 500 reported illnesses, more than 100 hospitalizations, and two deaths; the ongoing 2019 outbreak had already sickened more than 70 people in eight states.

Fresh papaya is usually eaten raw, so prevention depends on conditions at growing, harvesting, washing, packing, cooling, transport, and distribution. FDA's later analysis also highlighted traceback challenges caused by incomplete purchase dates, inconsistent records, similar branding, commingling, and a lack of specific brand or lot information.

How does the Green List change the import process?

Import Alert 21-17 allows raw, fresh papaya from Mexico to be detained unless the applicable firms meet the alert's exclusion conditions. The current guidance links shipper, packer, repacker, and grower status: a listed packing operation does not create a blanket exemption for fruit from any farm. Shipment documentation must preserve the approved supply-chain relationship.

What should Mexican produce exporters strengthen?

• Assess water, soil amendments, animals, worker hygiene, tools, food-contact surfaces, and packing operations as potential microbial routes.
• Maintain grower, field, harvest date, packing line, lot, pallet, shipper, importer, and customer links without commingling away the identity.
• Verify the current Red List and Green List status of every entity involved before loading fresh papaya.
• Define who stops distribution, notifies FDA and customers, and reconciles product if a test or illness signal appears.
• Coordinate the foreign supplier's produce-safety evidence with the US importer's FSVP verification.

Quick answers for Mexican papaya exporters

Does one Green List firm make every Mexican papaya shipment exempt?

No. The alert's notes and guidance connect eligibility to specific roles and approved growers. The actual grower-packer-shipper chain must match the applicable FDA listing.

Can one negative laboratory result remove a company from the alert?

Not automatically. A shipment may be supported by admissibility evidence, while removal from detention criteria requires a broader submission that addresses the conditions leading to the violation.

Verified public sources

• FDA Import Alert 21-17 for raw, fresh papaya from Mexico: https://www.accessdata.fda.gov/cms_ia/importalert_721.html
• FDA letter to papaya growers, packers, exporters, importers, and retailers, August 26, 2019: https://www.fda.gov/media/130271/download

FDABridge helps produce exporters coordinate FDA registration, US Agent service, FSVP-facing records, Prior Notice, labels, and import-alert review. Visit fdabridge.com/food or fdabridge.com/contact.