Changchun Wancheng Bio-Electron Recalls S. Typhi/Para Typhi A Antigen Test Strips Over Marketing Concerns

Source: FDA · United States

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Changchun Wancheng Bio-Electron Co., Ltd. is recalling 1,000 S. Typhi/Para Typhi A Antigen test strips distributed in the U.S. without required FDA 510(k) clearance.

What this FDA recall tells you, and what most readers miss

This notice was issued by FDA on April 6, 2026 and geographically references United States. Its severity classification of "medium" signals how the issuing agency weighs the risk of harm if no action is taken - "critical" and "high" tier alerts typically carry direct consumer actions, while "medium" and "low" tend toward informational guidance or monitoring advisories. The category it belongs to - FDA Recalls - determines the consumer-protection framework behind it, which shapes what remedies (refunds, replacements, repairs, or the recall itself) are available to affected consumers and which agency holds statutory responsibility for enforcement.

Most readers skim a notice like this, check whether they are personally affected, and move on. The more useful lens is to verify its scope, source, and timestamp, then compare related notices without assuming that one record proves a broader trend.

Areazine pairs this record with the original agency URL so you can check the primary source before acting. Its related labels are recall, product-safety, fda, MedicalDevice.

What Happened

Changchun Wancheng Bio-Electron Co., Ltd. has initiated a voluntary recall of its S. Typhi/Para Typhi A Antigen test strips. The recall was prompted because the devices, which require 510(k) clearance, were distributed to U.S. customers before they could be legally marketed. According to the FDA, these devices may produce false or inaccurate diagnostic results when used by laypersons, which could lead to inappropriate medical interventions.

Which Products Are Affected

The recall involves 1,000 units of the following product:

  • Product Name: S. Typhi/Para Typhi A Antigen
  • Lot Number: GT-STA 20251601
  • Expiration Date: 05-2027
  • Recall Number: Z-1261-2026

Distribution was nationwide within the United States, specifically targeting the states of Texas, Georgia, and California.

What You Should Do

Consumers, distributors, and healthcare providers who have the affected test strips should immediately cease their use. The recalling firm initiated the notification process via letter on November 22, 2025. For specific instructions on returning or disposing of the product, contact Changchun Wancheng Bio-Electron Co., Ltd. at their address: 2336, Tianwei Road, Beihu Science and Technology Development Zone, Changchun, China.

Why This Matters

The distribution of medical devices without proper regulatory clearance poses a risk to public health, as the accuracy and safety of the tests have not been verified for the U.S. market. Inaccurate results can lead to delayed treatment or unnecessary medical procedures.

Source

This information is based on an official report from the FDA.

Original source: FDA Official Notice ↗

All FDA Recalls →

Frequently Asked Questions

Common questions about this FDA recall.

What is this FDA recall about?
Changchun Wancheng Bio-Electron Co., Ltd. is recalling 1,000 S. Typhi/Para Typhi A Antigen test strips distributed in the U.S. without required FDA 510(k) clearance.
Which agency issued this alert?
This alert was issued by FDA. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "medium" severity. Stay informed and follow agency guidance.
What area is affected?
This alert affects United States. Check with FDA for the most current geographic scope.
Where can I find more FDA Recalls updates?
Browse the full FDA Recalls feed on Areazine at areazine.com/recalls/fda/ for the latest updates from FDA and other agencies.