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Determine™ HIV–1/2 Ag/Ab Combo 7D2648Recalls & reported problems

Alere Scarborough, Inc. · Determine™ HIV–1/2 Ag/Ab Combo is an in vitro, visually read, qualitative immunoassay for the simultaneous detection of HIV-1 p24 antigen (Ag) and antibodies (Ab) to HIV-1 and HIV-2 in human serum, plasma, capillary (fingerstick) whole blood or venipuncture (venous) whole blood. · Class 2

Data updated Oct 18, 2026 from official FDA records · Editorial policy

Quick summary

This Determine HIV-1/2 Ag/Ab Combo test is a blood test for HIV. Its 409 adverse event reports mostly describe false positive results, with some describing false negative and non-reproducible results. The reports include no deaths and 2 injuries. No recalls name this device. Reports fell from 217 in the earlier year to 111 in the latest year.

AI-generated from the FDA records on this page and checked automatically against the numbers below. Read the details before relying on it.

Adverse event reports
409
Deaths reported
0
Injuries reported
2
Recalls naming it
0

Summary

The FDA's MAUDE database contains 409 adverse event reports that list this exact device (DI 00811877011101), received between Oct 20, 2022 and May 4, 2026 — classified as 2 injuries, 407 malfunctions.

The most frequently reported specific device problem is “False Positive Result” (395 reports).

Reports come from manufacturers, hospitals and patients and are not verified by the FDA. A report does not prove the device caused the event, and counts can't be used to compare devices or estimate failure rates. What reports can and can't tell you · How this data works · Data updated Oct 18, 2026.

Reports received per month

Nov 2023: 5 reportsDec 2023: 0 reportsJan 2024: 1 reportsFeb 2024: 2 reportsMar 2024: 3 reportsApr 2024: 21 reportsMay 2024: 7 reportsJun 2024: 1 reportsJul 2024: 4 reportsAug 2024: 0 reportsSep 2024: 2 reportsOct 2024: 1 reportsNov 2024: 10 reportsDec 2024: 3 reportsJan 2025: 0 reportsFeb 2025: 6 reportsMar 2025: 10 reportsApr 2025: 16 reportsMay 2025: 0 reportsJun 2025: 3 reportsJul 2025: 54 reportsAug 2025: 6 reportsSep 2025: 11 reportsOct 2025: 98 reportsNov 2025: 7 reportsDec 2025: 1 reportsJan 2026: 2 reportsFeb 2026: 0 reportsMar 2026: 1 reportsApr 2026: 0 reportsMay 2026: 100 reportsJun 2026: 0 reportsJul 2026: 0 reportsAug 2026: 0 reportsSep 2026: 0 reportsOct 2026: 0 reports202420252026100
Last 36 months. The most recent month may be incomplete.

Most reported problems

Device problems

  • False Positive Result395
  • False Negative Result10
  • Non Reproducible Results5

Patient problems

  • No Clinical Signs, Symptoms or Conditions408
  • Insufficient Information1

Recent adverse event reports

The 25 most recent of 409 reports, in the reporter's own words as published by the FDA.

  • MalfunctionMay 4, 2026False Positive Result

    THE CUSTOMER REPORTED ONE-HUNDRED (100) FALSE POSITIVE RESULTS WITH THE DETERMINE HIV 1/2 AG/AB COMBO TEST PERFORMED ON AN UNKNOWN DATE WITH AN UNKNOWN SAMPLE TYPE. ALTHOUGH REQUESTED, NO SPECIFIC PATIENT INFORMATION, INCLUDING DEMOGRAPHICS, TREATMENT, OR IMPACT WAS PROVIDED.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25075115 ↗
  • MalfunctionMay 4, 2026False Positive Result

    THE CUSTOMER REPORTED ONE-HUNDRED (100) FALSE POSITIVE RESULTS WITH THE DETERMINE HIV 1/2 AG/AB COMBO TEST PERFORMED ON AN UNKNOWN DATE WITH AN UNKNOWN SAMPLE TYPE. ALTHOUGH REQUESTED, NO SPECIFIC PATIENT INFORMATION, INCLUDING DEMOGRAPHICS, TREATMENT, OR IMPACT WAS PROVIDED.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25075114 ↗
  • MalfunctionMay 4, 2026False Positive Result

    THE CUSTOMER REPORTED ONE-HUNDRED (100) FALSE POSITIVE RESULTS WITH THE DETERMINE HIV 1/2 AG/AB COMBO TEST PERFORMED ON AN UNKNOWN DATE WITH AN UNKNOWN SAMPLE TYPE. ALTHOUGH REQUESTED, NO SPECIFIC PATIENT INFORMATION, INCLUDING DEMOGRAPHICS, TREATMENT, OR IMPACT WAS PROVIDED.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25075110 ↗
  • MalfunctionMay 4, 2026False Positive Result

    THE CUSTOMER REPORTED ONE-HUNDRED (100) FALSE POSITIVE RESULTS WITH THE DETERMINE HIV 1/2 AG/AB COMBO TEST PERFORMED ON AN UNKNOWN DATE WITH AN UNKNOWN SAMPLE TYPE. ALTHOUGH REQUESTED, NO SPECIFIC PATIENT INFORMATION, INCLUDING DEMOGRAPHICS, TREATMENT, OR IMPACT WAS PROVIDED.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25075102 ↗
  • MalfunctionMay 4, 2026False Positive Result

    THE CUSTOMER REPORTED ONE-HUNDRED (100) FALSE POSITIVE RESULTS WITH THE DETERMINE HIV 1/2 AG/AB COMBO TEST PERFORMED ON AN UNKNOWN DATE WITH AN UNKNOWN SAMPLE TYPE. ALTHOUGH REQUESTED, NO SPECIFIC PATIENT INFORMATION, INCLUDING DEMOGRAPHICS, TREATMENT, OR IMPACT WAS PROVIDED.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25075098 ↗
  • MalfunctionMay 4, 2026False Positive Result

    THE CUSTOMER REPORTED ONE-HUNDRED (100) FALSE POSITIVE RESULTS WITH THE DETERMINE HIV 1/2 AG/AB COMBO TEST PERFORMED ON AN UNKNOWN DATE WITH AN UNKNOWN SAMPLE TYPE. ALTHOUGH REQUESTED, NO SPECIFIC PATIENT INFORMATION, INCLUDING DEMOGRAPHICS, TREATMENT, OR IMPACT WAS PROVIDED.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25074938 ↗
  • MalfunctionMay 4, 2026False Positive Result

    THE CUSTOMER REPORTED ONE-HUNDRED (100) FALSE POSITIVE RESULTS WITH THE DETERMINE HIV 1/2 AG/AB COMBO TEST PERFORMED ON AN UNKNOWN DATE WITH AN UNKNOWN SAMPLE TYPE. ALTHOUGH REQUESTED, NO SPECIFIC PATIENT INFORMATION, INCLUDING DEMOGRAPHICS, TREATMENT, OR IMPACT WAS PROVIDED.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25074937 ↗
  • MalfunctionMay 4, 2026False Positive Result

    THE CUSTOMER REPORTED ONE-HUNDRED (100) FALSE POSITIVE RESULTS WITH THE DETERMINE HIV 1/2 AG/AB COMBO TEST PERFORMED ON AN UNKNOWN DATE WITH AN UNKNOWN SAMPLE TYPE. ALTHOUGH REQUESTED, NO SPECIFIC PATIENT INFORMATION, INCLUDING DEMOGRAPHICS, TREATMENT, OR IMPACT WAS PROVIDED.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25074935 ↗
  • MalfunctionMay 4, 2026False Positive Result

    THE CUSTOMER REPORTED ONE-HUNDRED (100) FALSE POSITIVE RESULTS WITH THE DETERMINE HIV 1/2 AG/AB COMBO TEST PERFORMED ON AN UNKNOWN DATE WITH AN UNKNOWN SAMPLE TYPE. ALTHOUGH REQUESTED, NO SPECIFIC PATIENT INFORMATION, INCLUDING DEMOGRAPHICS, TREATMENT, OR IMPACT WAS PROVIDED.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25074934 ↗
  • MalfunctionMay 4, 2026False Positive Result

    THE CUSTOMER REPORTED ONE-HUNDRED (100) FALSE POSITIVE RESULTS WITH THE DETERMINE HIV 1/2 AG/AB COMBO TEST PERFORMED ON AN UNKNOWN DATE WITH AN UNKNOWN SAMPLE TYPE. ALTHOUGH REQUESTED, NO SPECIFIC PATIENT INFORMATION, INCLUDING DEMOGRAPHICS, TREATMENT, OR IMPACT WAS PROVIDED.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25074932 ↗
  • MalfunctionMay 4, 2026False Positive Result

    THE CUSTOMER REPORTED ONE-HUNDRED (100) FALSE POSITIVE RESULTS WITH THE DETERMINE HIV 1/2 AG/AB COMBO TEST PERFORMED ON AN UNKNOWN DATE WITH AN UNKNOWN SAMPLE TYPE. ALTHOUGH REQUESTED, NO SPECIFIC PATIENT INFORMATION, INCLUDING DEMOGRAPHICS, TREATMENT, OR IMPACT WAS PROVIDED.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25074931 ↗
  • MalfunctionMay 4, 2026False Positive Result

    THE CUSTOMER REPORTED ONE HUNDRED (100) FALSE POSITIVE RESULTS WITH THE DETERMINE HIV 1/2 AG/AB COMBO TEST PERFORMED ON AN UNKNOWN DATE WITH AN UNKNOWN SAMPLE TYPE. ALTHOUGH REQUESTED, NO SPECIFIC PATIENT INFORMATION, INCLUDING DEMOGRAPHICS, TREATMENT, OR IMPACT WAS PROVIDED.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25074930 ↗
  • MalfunctionMay 4, 2026False Positive Result

    THE CUSTOMER REPORTED ONE-HUNDRED (100) FALSE POSITIVE RESULTS WITH THE DETERMINE HIV 1/2 AG/AB COMBO TEST PERFORMED ON AN UNKNOWN DATE WITH AN UNKNOWN SAMPLE TYPE. ALTHOUGH REQUESTED, NO SPECIFIC PATIENT INFORMATION, INCLUDING DEMOGRAPHICS, TREATMENT, OR IMPACT WAS PROVIDED.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25074929 ↗
  • MalfunctionMay 4, 2026False Positive Result

    THE CUSTOMER REPORTED ONE-HUNDRED (100) FALSE POSITIVE RESULTS WITH THE DETERMINE HIV 1/2 AG/AB COMBO TEST PERFORMED ON AN UNKNOWN DATE WITH AN UNKNOWN SAMPLE TYPE. ALTHOUGH REQUESTED, NO SPECIFIC PATIENT INFORMATION, INCLUDING DEMOGRAPHICS, TREATMENT, OR IMPACT WAS PROVIDED.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25074928 ↗
  • MalfunctionMay 4, 2026False Positive Result

    THE CUSTOMER REPORTED ONE HUNDRED (100) FALSE POSITIVE RESULTS WITH THE DETERMINE HIV 1/2 AG/AB COMBO TEST PERFORMED ON AN UNKNOWN DATE WITH AN UNKNOWN SAMPLE TYPE. ALTHOUGH REQUESTED, NO SPECIFIC PATIENT INFORMATION, INCLUDING DEMOGRAPHICS, TREATMENT, OR IMPACT WAS PROVIDED.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25074927 ↗
  • MalfunctionMay 4, 2026False Positive Result

    THE CUSTOMER REPORTED ONE-HUNDRED (100) FALSE POSITIVE RESULTS WITH THE DETERMINE HIV 1/2 AG/AB COMBO TEST PERFORMED ON AN UNKNOWN DATE WITH AN UNKNOWN SAMPLE TYPE. ALTHOUGH REQUESTED, NO SPECIFIC PATIENT INFORMATION, INCLUDING DEMOGRAPHICS, TREATMENT, OR IMPACT WAS PROVIDED.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25074926 ↗
  • MalfunctionMay 4, 2026False Positive Result

    THE CUSTOMER REPORTED ONE-HUNDRED (100) FALSE POSITIVE RESULTS WITH THE DETERMINE HIV 1/2 AG/AB COMBO TEST PERFORMED ON AN UNKNOWN DATE WITH AN UNKNOWN SAMPLE TYPE. ALTHOUGH REQUESTED, NO SPECIFIC PATIENT INFORMATION, INCLUDING DEMOGRAPHICS, TREATMENT, OR IMPACT WAS PROVIDED.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25074925 ↗
  • MalfunctionMay 4, 2026False Positive Result

    THE CUSTOMER REPORTED ONE HUNDRED (100) FALSE POSITIVE RESULTS WITH THE DETERMINE HIV 1/2 AG/AB COMBO TEST PERFORMED ON AN UNKNOWN DATE WITH AN UNKNOWN SAMPLE TYPE. ALTHOUGH REQUESTED, NO SPECIFIC PATIENT INFORMATION, INCLUDING DEMOGRAPHICS, TREATMENT, OR IMPACT WAS PROVIDED.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25074919 ↗
  • MalfunctionMay 4, 2026False Positive Result

    THE CUSTOMER REPORTED ONE-HUNDRED (100) FALSE POSITIVE RESULTS WITH THE DETERMINE HIV 1/2 AG/AB COMBO TEST PERFORMED ON AN UNKNOWN DATE WITH AN UNKNOWN SAMPLE TYPE. ALTHOUGH REQUESTED, NO SPECIFIC PATIENT INFORMATION, INCLUDING DEMOGRAPHICS, TREATMENT, OR IMPACT WAS PROVIDED.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25074895 ↗
  • MalfunctionMay 4, 2026False Positive Result

    THE CUSTOMER REPORTED ONE HUNDRED (100) FALSE POSITIVE RESULTS WITH THE DETERMINE HIV 1/2 AG/AB COMBO TEST PERFORMED ON AN UNKNOWN DATE WITH AN UNKNOWN SAMPLE TYPE. ALTHOUGH REQUESTED, NO SPECIFIC PATIENT INFORMATION, INCLUDING DEMOGRAPHICS, TREATMENT, OR IMPACT WAS PROVIDED.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25074894 ↗
  • MalfunctionMay 4, 2026False Positive Result

    THE CUSTOMER REPORTED ONE-HUNDRED (100) FALSE POSITIVE RESULTS WITH THE DETERMINE HIV 1/2 AG/AB COMBO TEST PERFORMED ON AN UNKNOWN DATE WITH AN UNKNOWN SAMPLE TYPE. ALTHOUGH REQUESTED, NO SPECIFIC PATIENT INFORMATION, INCLUDING DEMOGRAPHICS, TREATMENT, OR IMPACT WAS PROVIDED.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25074893 ↗
  • MalfunctionMay 4, 2026False Positive Result

    THE CUSTOMER REPORTED ONE-HUNDRED (100) FALSE POSITIVE RESULTS WITH THE DETERMINE HIV 1/2 AG/AB COMBO TEST PERFORMED ON AN UNKNOWN DATE WITH AN UNKNOWN SAMPLE TYPE. ALTHOUGH REQUESTED, NO SPECIFIC PATIENT INFORMATION, INCLUDING DEMOGRAPHICS, TREATMENT, OR IMPACT WAS PROVIDED.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25074892 ↗
  • MalfunctionMay 4, 2026False Positive Result

    THE CUSTOMER REPORTED ONE-HUNDRED (100) FALSE POSITIVE RESULTS WITH THE DETERMINE HIV 1/2 AG/AB COMBO TEST PERFORMED ON AN UNKNOWN DATE WITH AN UNKNOWN SAMPLE TYPE. ALTHOUGH REQUESTED, NO SPECIFIC PATIENT INFORMATION, INCLUDING DEMOGRAPHICS, TREATMENT, OR IMPACT WAS PROVIDED.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25074891 ↗
  • MalfunctionMay 4, 2026False Positive Result

    THE CUSTOMER REPORTED ONE-HUNDRED (100) FALSE POSITIVE RESULTS WITH THE DETERMINE HIV 1/2 AG/AB COMBO TEST PERFORMED ON AN UNKNOWN DATE WITH AN UNKNOWN SAMPLE TYPE. ALTHOUGH REQUESTED, NO SPECIFIC PATIENT INFORMATION, INCLUDING DEMOGRAPHICS, TREATMENT, OR IMPACT WAS PROVIDED.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25074890 ↗
  • MalfunctionMay 4, 2026False Positive Result

    THE CUSTOMER REPORTED ONE-HUNDRED (100) FALSE POSITIVE RESULTS WITH THE DETERMINE HIV 1/2 AG/AB COMBO TEST PERFORMED ON AN UNKNOWN DATE WITH AN UNKNOWN SAMPLE TYPE. ALTHOUGH REQUESTED, NO SPECIFIC PATIENT INFORMATION, INCLUDING DEMOGRAPHICS, TREATMENT, OR IMPACT WAS PROVIDED.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 25074889 ↗

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Sources and updates

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