Dynex DSX Software-IVD ELISA Assays effected as follows: DSX Assay File Software: ZEUS vl B. burgdorferi lgG-lgM.asy ZEUS vl Borrelia VlsEl-pepClO lgG-lgM.asy ZEUS Parvovirus B19 lgG (9Z7701G).asy ZEUS Parvovirus B19 lgM (9Z7701M).asy ZEUS vl HSV-1 and 2 lgM.asy ZEUS vl Sm-RNP [CF] .asy ZEUS vl Sm-RNP [CV].asy ZEUS vl CMV lgG.asy ZEUS vl CMV lgM.asy ZEUS vl EBV-VCA lgG.asy ZEUS vl EBV-VCA lgM.asy ZEUS vl H. pylori lgG.asy ZEUS vl M. pneumoniae lgG.asy ZEUS vl M. pneumoniae lgM.as

Assay files used on the open Dynex DSX Instrument to process IVD ELISA samples-programming error results in well H6 being skipped for the addition of the TMB substrate. Well H6 wi…

Recall #: Z-2494-2019
Affected scope: 28 Assays
Initiated: July 22, 2019

Compiled from official public sources by the publisher. · Updated September 2026

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Zeus Scientific, Inc. recalled Dynex DSX Software-IVD ELISA Assays effected as follows: DSX Assay File Software: ZEUS… - a moderate-severity action.

Dynex DSX Software-IVD ELISA Assays effected as follows: DSX Assay File Software: ZEUS… was recalled by Zeus Scientific, Inc. in September 18, 2019. Reason: Assay files used on the open Dynex DSX Instrument to process IVD ELISA samples-programming error results in w…. Check the official notice for the remedy. Verify recall #Z-2494-2019 with the FDA Devices before acting.

The recall

Zeus Scientific, Inc. issued this moderate-severity FDA Devices recall-Assay files used on the open Dynex DSX Instrument to process IVD ELISA samples-programming error results in w….

Moderate
severity level: Class II
classification: September 18, 2019
reported

Sourced from official FDA Devices enforcement records. Verify recall #Z-2494-2019 with the agency before acting. Full product description, hazard, remedy, and related recalls are below.

Recall Insight

This recall's affected scope, documented in the Recall Profile below, stays within a single-region or limited-distribution footprint. Distribution scope (see Distribution below) directly affects the consumer exposure window and determines whether a recall remains regional or escalates into a nationwide advisory.

Within the same product category the archive holds 6 closely related recalls, 6 from FDA Devices - clustering in a narrow category often points to a systemic quality-control or supplier issue rather than a one-off defect. Always verify the recall number against the official agency record before acting.

Where this agency-classified recall sits among FDA Class I/II/III notices

Of 88,244 recalls with an agency hazard classification, 19,068 are high severity, 64,652 moderate, and 4,524 low. A further 16,179 CPSC/NHTSA recalls have no agency class and are excluded from this split. This recall is classified moderate severity.

Counts reflect market size and reporting activity, not inherent danger, we do not rank products by risk from raw recall volume.

Product description

Dynex DSX Software-IVD ELISA Assays effected as follows: DSX Assay File Software: ZEUS vl B. burgdorferi lgG-lgM.asy ZEUS vl Borrelia VlsEl-pepClO lgG-lgM.asy ZEUS Parvovirus B19 lgG (9Z7701G).asy ZEUS Parvovirus B19 lgM (9Z7701M).asy ZEUS vl HSV-1 and 2 lgM.asy ZEUS vl Sm-RNP [CF] .asy ZEUS vl Sm-RNP [CV].asy ZEUS vl CMV lgG.asy ZEUS vl CMV lgM.asy ZEUS vl EBV-VCA lgG.asy ZEUS vl EBV-VCA lgM.asy ZEUS vl H. pylori lgG.asy ZEUS vl M. pneumoniae lgG.asy ZEUS vl M. pneumoniae lgM.asy ZEUS vl Measles lgG.asy ZEUS vl Mumps lgG .asy ZEUS vl T. gondii lgG .asy ZEUS vl T. gondii lgM.asy ZEUS vl VZV lgG.asy ZEUS vl Rubella lgG .asy ZEUS vl Rubella lgM.asy ZEUS vl MPO [CF].asy ZEUS vl MPO [CV].asy ZEUS vl EBNA-1 lgG.asy ZEUS vl.1 HSV-1 and 2 lgM.asy Product Usage: The DYNEX DSX Automated ELISA System is an open automated open system to perform ELISA immunoassay

Reason for recall

Assay files used on the open Dynex DSX Instrument to process IVD ELISA samples-programming error results in well H6 being skipped for the addition of the TMB substrate. Well H6 will generate a negative result regardless of whether the patient was negative or positive for that antibody. This could result in a potential false negative result for that assay for any patients tested in well H6.

Recall Profile

Structured summary of the FDA Devices recall record
Attribute	Value
Agency	U.S. Food and Drug Administration
Severity class	Moderate (Class II)
Status	Terminated
Recall number	Z-2494-2019
Date reported	September 18, 2019
Date initiated	July 22, 2019
Recalling firm	Zeus Scientific, Inc.
Firm location	Branchburg, NJ
Affected scope	28 Assays
Distribution	US nationwide distribution in the states of CA, CT, FL, KY, IN, MA, MI, NY, NJ, NH, OH, PA, TX, VA.

Profile values are sourced directly from the official FDA Devices enforcement record. Source: U.S. Food and Drug Administration.

What to do with this recall

Match your product against the recall record, then act on the agency remedy.

Check the recall number (Z-2494-2019) and product description against the item you own. Search the archive
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Follow the documented remedy (refund, replacement, repair, or disposal) rather than general advice. What to do next

This page summarizes the official FDA Devices record for research and awareness; it is not legal, medical, or safety advice. Verify with the issuing agency before acting.

Frequently Asked Questions

What product was recalled? ▼

Why was this product recalled? ▼

Which agency issued this recall? ▼

This recall was issued by the FDA Devices on September 18, 2019. Severity: Moderate. Recall number: Z-2494-2019.

Where was the recalled product distributed? ▼

Distribution: US nationwide distribution in the states of CA, CT, FL, KY, IN, MA, MI, NY, NJ, NH, OH, PA, TX, VA..

Should I stop using a recalled medication or medical device? ▼

Do not stop using a recalled medication or device without consulting your healthcare provider first, as abruptly discontinuing treatment could pose its own health risks. Your doctor can advise on alternatives or whether the recall applies to your specific product lot. Check the recall number and lot information against your product packaging.

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Similar severity · nearest report date

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This recall: FDA Devices, reported September 18, 2019. Severity classes follow each agency's own taxonomy; related-recall context is computed across the full archive.

Methodology · Corrections · Archive as of August 2026