510(k) Report

510(k) · Cleared

Cleared

Vitek 2 Ast-ST Linezolid

K111599510(k) TraditionalCleared Aug 12, 201165-day reviewClass II21 CFR 866.1645

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

bioMerieux, Inc. · LON System, Test, Automated, Antimicrobial Susceptibility, Short Incubation

Cleared on Aug 12, 2011 as substantially equivalent to K063597 (bioMerieux, Inc., 2007) after a 65-day review. Its family tree reaches back 3 generations to 2003. 1 later device descends from it.

Decided
Aug 12, 2011
Review
65 days
Class
Class II
Product code
LON
Recalls
None
Predicates
1

Its longest line of descent runs back 3 generations to K031865 (2003). 1 later device descends from it, 1 citing it directly.

Descendants, by year cleared 2013: 1 descendant clearedK031865 · Vitek 2 Gram Positive Moxifloxacin for Strepococcus Pneumoniae · bioMerieux, Inc. · 2003K053186 · Vitek 2 Gram Positive Telithromycin for Streptococcus Pneumoniae · bioMerieux, Inc. · 2005K063597 · Vitek 2 Gram Positive Amoxicillin for Streptococcus Pneumoniae · bioMerieux, Inc. · 2007200020052010201520202025
Descendants, by generation 1 generation forward: 1 descendant K063597 · Vitek 2 Gram Positive Amoxicillin for Streptococcus Pneumoniae · bioMerieux, Inc. · 2007K053186 · Vitek 2 Gram Positive Telithromycin for Streptococcus Pneumoniae · bioMerieux, Inc. · 2005K031865 · Vitek 2 Gram Positive Moxifloxacin for Strepococcus Pneumoniae · bioMerieux, Inc. · 20030
  1. Root · 3 generations backK031865 Vitek 2 Gram Positive Moxifloxacin for Strepococcus PneumoniaebioMerieux, Inc. · 2003
  2. 2 generations backK053186 Vitek 2 Gram Positive Telithromycin for Streptococcus PneumoniaebioMerieux, Inc. · 2005
  3. 1 generation backK063597 Vitek 2 Gram Positive Amoxicillin for Streptococcus PneumoniaebioMerieux, Inc. · 2007
  4. This deviceK111599 Vitek 2 Ast-ST LinezolidbioMerieux, Inc. · 2011
  5. Descendant · cites it directly · 0 of its ownK131779 Vitek 2 Ast-ST TigecyclinebioMerieux, Inc. · 2013

Most influential descendants

Showing 1 of 1 · See all
  • K131779Vitek 2 Ast-ST TigecyclinebioMerieux, Inc. · 2013 · cites it directly0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−3K031865Vitek 2 Gram Positive Moxifloxacin for Strepococcus PneumoniaebioMerieux, Inc.2003—
−2K053186Vitek 2 Gram Positive Telithromycin for Streptococcus PneumoniaebioMerieux, Inc.2005—
−1K063597Vitek 2 Gram Positive Amoxicillin for Streptococcus PneumoniaebioMerieux, Inc.2007—
0 (this device)K111599Vitek 2 Ast-ST LinezolidbioMerieux, Inc.2011—
+1K131779Vitek 2 Ast-ST TigecyclinebioMerieux, Inc.2013—

Descendants by year cleared

Year clearedDevicesWith a Class I recall
201310
FIG. 1 — Lineage of K111599, 2003–2013Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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Notable FDA decisions, review times and new Class I recalls. See an issue.

Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.

Planning a device in LON? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.

Top candidate predicates for a new LON device

  1. #1 K260619 VITEK 2 AST-Streptococcus Cefepime (<=0.06 –…score 13.3 · 5 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
Get a 510(k) Report

What was it cleared against? (1)

Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.

TypeNumberDeviceApplicantDecidedRecalls
*K063597Vitek 2 Gram Positive Amoxicillin for Streptococcus Pneumoniae
Summary page 1
…olid C. Predicate Device: VITEK5 2 Gram Positive Amoxicillin for Streptococcus pneunioniae (K063597) D. 510(k) Summary: VITEK® 2 Streptococcus Linezolid is designed for antimicrobial susceptibility testing of Streptococ…
bioMerieux, Inc.2007—

Also cleared against K063597: 11 other devices →

What descends from it? (1)

1 later device cites it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K131779Vitek 2 Ast-ST TigecyclinebioMerieux, Inc.20130

Has anything in its family been recalled? (0 Class I)

No FDA recall names this device.

No ancestor or descendant has a Class I recall.

What does this lineage say?

  • The line of descent spans 8 years and passes through 1 company; a new generation was cleared every 2.3 years on median.
  • None of the 3 ancestors has a recall.
  • Of its descendants, K131779 (bioMerieux, Inc., 2013) has gone furthest, with 0 descendants of its own.
  • 11 other devices also cite its predicate K063597.

How does its category compare?

All LON devices

LON System, Test, Automated, Antimicrobial Susceptibility, Short Incubation: FDA decisions, review times, recalls and adverse event reports over 20 years. 2011, this device’s year, is highlighted.

FDA decisions per year · LON

5in 2025

2007: 192008: 72009: 82010: 12011: 82012: 102013: 72014: 42016: 32017: 102018: 42019: 82020: 52021: 52022: 82023: 112024: 22025: 52026 (partial year): 4
2007high 19 (2007) · low 0 (2015)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · LON

90in 2025

2007: 50 days median2008: 66 days median2009: 76 days median2011: 85 days median2012: 200 days median2013: 115 days median2014: 90 days median2016: 242 days median2017: 89 days median2018: 88 days median2019: 84 days median2020: 81 days median2021: 268 days median2022: 189 days median2023: 210 days median2025: 90 days median2026 (partial year): 146 days median
2007high 268 (2021) · low 50 (2007)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · LON

1in 2025

2008: 12010: 1162011: 32012: 32014: 2, 2 Class I2016: 22017: 12018: 62019: 12020: 82022: 152024: 12025: 12026 (partial year): 6
2007high 116 (2010) · low 0 (2007)2026

Class I (2 since 2007) Class II/III not classified

Adverse event reports per year · LON

690in 2025

2007: 32008: 12010: 32011: 42012: 92013: 32014: 102015: 412016: 942017: 1972018: 5122019: 3152020: 2182021: 2322022: 1802023: 4532024: 4182025: 690
2007high 690 (2025) · low 0 (2009)2025

MAUDE reports naming product code LON, not matched to any one device; reports are not rates.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
2007195003
200876611
200987600
20101—1163
201188534
20121020039
2013711503
20144902 (2)10
20150—041
20163242294
201710891197
20184886512
20198841315
20205818218
202152680232
2022818915180
2023112100453
20242—1418
20255901690
202641466—

What is it indicated for?

VITEK® 2 Streptococcus Linezolid is designed for antimicrobial susceptibility testing of Streptococcus species and is intended for use with the VITEK® 2 and VITEK 2 Compact Systems as a laboratory aid in the determination of in vitro susceptibility to antimicrobial agents. VITEK® 2 Streptococcus Linezolid is a qualitative test. Linezolid has been shown to be active against most strains of the microorganisms listed below, according to the FDA label for…

Read the full statement (136 words)

VITEK® 2 Streptococcus Linezolid is designed for antimicrobial susceptibility testing of Streptococcus species and is intended for use with the VITEK® 2 and VITEK 2 Compact Systems as a laboratory aid in the determination of in vitro susceptibility to antimicrobial agents. VITEK® 2 Streptococcus Linezolid is a qualitative test. Linezolid has been shown to be active against most strains of the microorganisms listed below, according to the FDA label for this antimicrobial.

Active in vitro and in clinical infections

Streptococcus agalactiae

Streptococcus pneumoniae (including multi-drug resistant isolates [MDRSP])

Streptococcus pyogenes

The VITEK® 2 Antimicrobial Susceptibility Test (AST) is intended to be used with the VITEK® 2 Systems for the automated quantitative or qualitative susceptibility testing of isolated colonies for the most clinically significant aerobic gram-negative bacilli, Staphylococcus spp., Enterococcus spp., Streptococcus spp. and clinically significant yeast.

Indications for use as stated in the FDA summary.

Also cleared against K063597

11 other devices cite the same predicate.

  • K121100Vitek 2 Ast Streptococus VancomycinbioMerieux, Inc. · 20121 recall
  • K122359Vitek 2 Strptococcus CeftriaxonebioMerieux, Inc. · 2012
  • K121863Vitek 2 Ast-ST CefotaximebioMerieux, Inc. · 2012
  • K113783Vitek 2 Ast- Gram Postive Penicillin for Streptococcus PneumoniaebioMerieux, Inc. · 2012
  • K111893Vitek (R) 2 Streptococcus TetracyclinebioMerieux, Inc. · 2012
  • K111976Vitek 2 Streptococcus ErythromycinbioMerieux, Inc. · 2012

More from bioMerieux, Inc.

281 FDA decisions under this applicant name. See the company

  • K260283VITEK 2 AST-Streptococcus Meropenem (=0.06 - =4 µg/mL)bioMerieux, Inc. · 2026
  • K260160VITEK REVEAL GN AST Assay and VITEK REVEAL AST SystembioMerieux, Inc. · 2026
  • K260282VITEK 2 AST-Streptococcus Inducible Clindamycin ResistancebioMerieux, Inc. · 2026
  • K251579VITEK 2 AST-Gram Negative Cefazolin (=<1-=>32 µg/mL)bioMerieux, Inc. · 2025
  • K234012Vitek Compact ProbioMerieux, Inc. · 2025

Recent decisions in LON

The LON category page

  • K260283VITEK 2 AST-Streptococcus Meropenem (=0.06 - =4 µg/mL)bioMerieux, Inc. · 2026
  • K260619VITEK 2 AST-Streptococcus Cefepime (<=0.06 – >=4 µg/mL)Biomérieux, Inc. · 2026
  • K260282VITEK 2 AST-Streptococcus Inducible Clindamycin ResistancebioMerieux, Inc. · 2026
  • K260281VITEK 2 AST-Streptococcus Cefuroxime (<=0.125 - >=8 µg/mL)Biomerieux · 2026
  • K251579VITEK 2 AST-Gram Negative Cefazolin (=<1-=>32 µg/mL)bioMerieux, Inc. · 2025

https://510kreport.com/device/K111599 · printed Nov 6, 2026

Cite this page

510(k) Report. “K111599: Vitek 2 Ast-ST Linezolid.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K111599

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Record history
  • FDA decision record loaded May 2, 2026
  • Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
  • Lineage and recalls computed Nov 3, 2026
  • Page last updated Nov 3, 2026