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Toda Covdiag X – Quadruplex

Infectious Diseases

4-in-1 rapid test for Covid-19, Influenza A & B, RSV, and Adenovirus

The Toda Covdiag X Quadruplex is a rapid combined diagnostic test for the simultaneous detection of COVID-19 antigens, influenza A and B viruses, RSV, and adenovirus.
  • Influenza A&B
  • SARS-CoV-2 (COVID-19)
  • RSV
  • Adenovirus
  • Interpretation time
    15 minutes
  • Sampling
    Nasopharyngeal swab

A rapid, accurate, and convenient test

The Benefits of the Toda Covdiag X Quadruplex

RAPID

 Results in 15 minutes for immediate decision-making.

CONVENIENT

Individual, ready-to-use buffer vials and a single-use diluent included for each test, limiting contamination risks.

EFFICIENT

Solution 4 en 1 qui permet d’éviter la multiplication des tests et de limiter les coûts.

ACCURATE, SENSITIVE, AND SPECIFIC

See performance table below. 

Performance

PERFORMANCE COVID-19 INFLUENZA A INFLUENZA B RSV Adenovirus
Sensitivity 96.7% 95.3% 91.5% 90.0% 95.2%
Specificity 99.5% 99.5% 99.6% 99.0% 96.8%
Accuracy 98.5% 99,0% 98.8% 98.4% 96.3%

An accurate test starts with proper technique

Découvrez en 7 étapes simples comment utiliser le Toda Covdiag X Quadruplex. 

This test is intended for use by healthcare professionals only.

Practical information

Tous les coffrets Toda Covdiag X Quadruplex contiennent : 

  • 20 tests au format cassette
  • 20 écouvillons
  • 20 flacons de diluant
  • 1 notice détaillée

References

  • Box of 20 tests: 0803015

The test should be stored at room temperature (between +2 and +30 °C).

Helpful documents

Catalog & product sheet

Infectious Diseases Catalogue

Toda Covdiag X Quadruplex Product Sheet

Download

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1. Why is it important to distinguish between COVID-19, the flu, bronchiolitis, and adenovirus?

Because these infections are very similar, but are treated differently.

Identifying these factors helps to better guide treatment, tailor follow-up care, and make the right decisions quickly, especially in cases of respiratory symptoms.

Adenovirus is a common virus that can cause respiratory infections, as well as, in some cases, conjunctivitis or digestive problems.

It usually causes symptoms similar to those of a cold or the flu (fever, cough, fatigue, sore throat) and primarily affects children, but can affect anyone.

In most cases, the infection is mild and clears up on its own.

Yes, it is entirely possible to be infected with multiple respiratory viruses at the same time, such as COVID-19, the flu, RSV, and adenovirus. This is known as a co-infection.

Co-infections are particularly common among:

  • Young children, whose immune systems are still immature
  • Elderly or immunocompromised individuals
  • Hospitalized or institutionalized patients, who are exposed to multiple viruses simultaneously

Having multiple viruses simultaneously can make symptoms more severe, complicate diagnosis, and increase the risk of respiratory complications, especially in vulnerable individuals.

Yes, the Toda Covdiag® X Quadruplex test is designed to detect the presence of viruses even in cases of mild symptoms or during the early stages of infection. It works by detecting viral antigens—that is, proteins produced by viruses as they multiply in the respiratory tract.

This means the test is generally more reliable when the viral load is sufficient, which is often the case in the first few days after symptom onset, even if symptoms are mild (e.g., fatigue, slight fever, mild cough).

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