FDA Medical Device Recalls (openFDA)
DiaSorin Molecular LLC: MOL3655 Simplexa VZV Swab Direct - Product Usage: is intended for use on the LIAISON MDX instrument for the qualitative detection of varicella-zoster virus (VZV) DNA present in cutaneous and mucocutaneous lesion swabs from patients with signs and symptoms of VZV infection.
- Recall number
- Z-2549-2020
- Recalling firm
- DiaSorin Molecular LLC
- Product
- MOL3655 Simplexa VZV Swab Direct - Product Usage: is intended for use on the LIAISON MDX instrument for the qualitative detection of varicella-zoster virus (VZV) DNA present in cutaneous and mucocutaneous lesion swabs from patients with signs and symptoms of VZV infection.
- Status
- Terminated
- Initiated
- 2020-05-12
- Posted
- 2020-07-10
- Terminated
- 2024-04-19
- Reason
- Due to a software malfunction in the Multi Assay Suite, there is the probability of increased occurrence of false negative results.
- Root cause
- Under Investigation by firm
- Action
- On 05/12/2020, the firm sent an "URGENT FIELD SAFETY NOTIFICATION LETTER" with an acknowledgement form to customers and distributors via email to inform them of an internal observed issue associated with the use of their Multi-Assay Suite (MAS) featured in the software version 2.0 where it may incorrectly apply the thresholds of the first loaded assay to the analytes coupled with the same dye in the second assay resulting in false negative or false positive results. The firm is instructing customers to: -Immediately discontinue the use of the MAS feature and that the issue will be correct in the new Software Version 2.1 which is expected to be release in June 2020. -Fill out the Response Form and return by either: -fax (562) 240-6526 Attention: Technical Services -email to: technical info.molecular@diasorin.com -mail to: ATTN: Technical Services, 11331 Valley View Street, Cypress, CA 90630 -Forward this communication to all required individuals with their organization. For further assistance with evaluating assay runs or for any questions, to contact Technical Services at +1-5672-240-6500, option 3 or via email ts.molecular@DiaSorin.com
- Quantity
- 304 plastic vials (24 vials per box)
- Distribution
- Worldwide distribution - U.S. Nationwide distribution including in the states of CO, FL, KS, MI, NC, PA, TX, and WA The countries of Austria, Czech Republic, France and Switerland.
- Lot, serial or model codes
- MOL3655 Simplexa VZV Swab Direct: Lot Numbers Release Date Exp Date 5743N 09/11/19 9/30/2020 5819N 10/09/19 10/31/2020 5820N 02/14/20 2/28/2021
- 510(k) numbers
- ["K192376"]
- PMA numbers
- not on file
- Product code
- PGI
- Firm FEI
- 2023365
- Firm city
- Cypress
- Firm state
- CA
- Firm country
- not on file
Where this comes from
- Register
- FDA Medical Device Recalls (openFDA)
- Publisher
- U.S. Food and Drug Administration (openFDA)
- File
- device-recall-0001-of-0001.json.zip
- sha256
- b87518bfe2e8
- Size
- 288210821 bytes
- Published
- 2026-09-28
- Read
- 2026-09-29T08:25:23.626Z
- Source file
- Source file retained · verify
- Refresh due
- 2026-10-06
Unless otherwise noted, the content, data, documentation, code, and related materials on openFDA is public domain and made available with a Creative Commons CC0 1.0 Universal dedication.
Cite as
FDA Medical Device Recalls (openFDA) (U.S. Food and Drug Administration (openFDA)), device-recall-0001-of-0001.json.zip, sha256 b87518bfe2e8, published 2026-09-28