cobas® Liat® Influenza A/B
& RSV Assay

Product image for cobas® Influenza A/B and RSV Assay

Differentiated Influenza A/B and RSV testing is here

One test, one sample, three results, zero age restrictions

While all age groups can be infected with respiratory synctial virus (RSV), the young and old are particularly vulnerable to more severe disease. In fact, RSV is the leading cause of lower respiratory disease for children younger than 4 years, and globally, nearly all children are infected by age two.1 On the other side of the age continuum, RSV is also common in adults older than 65 and their risk of serious infection increases with age.2

The cobas® Liat® Influenza A/B & RSV Nucleic acid test for use on the cobas® Liat® PCR System is a real-time polymerase chain reaction (PCR) test that detects and differentiates Influenza A, Influenza B and RSV in 20 minutes and is available now for use in laboratories, hospitals, physician officies and urgent care settings.

Timely results from cobas® Liat® Influenza A/B & RSV help guide clinical response for infection management and control. Performance of the cobas® Liat® Influenza A/B & RSV  test was compared with an FDA-cleared, laboratory based, multiplexed, real-time, reverse transcription PCR (RT-PCR) test across three targets.

cobas® Liat® Influenza A/B & RSV performance
Influenza - Charts
Intended use

The cobas® Liat® Influenza A/B and RSV Nucleic acid test for use on the cobas® Liat® PCR System is an automated multiplex real-time RT-PCR assay for the rapid in vitro qualitative detection and discrimination of Influenza A virus, Influenza B virus and respiratory syncytial virus (RSV) RNA in nasopharyngeal swab specimens from patients with signs and symptoms of respiratory infection in conjunction with clinical and epidemiological risk factors. The test is intended for use as an aid in the differential diagnosis of Influenza A, Influenza B, and RSV in humans and is not intended to detect Influenza C.

Registration status

CE-IVD, FDA 510(k) cleared, CLIA waived


  1. Collins PL and Grahm BS. Viral and host factors in human respiratory syncytial virus pathogenesis. J. Virol. 2008:82(5);2040-2055.
  2. Falsey AR, Hennessey PA, Formica MA, Cox C, Walsh EE. Respiratory Syncytial Virus Infection in Elderly and High-Risk Adults.  NEJM. 2005:352(17);1749-59. 
  3. cobas® Influenza A/B & RSV [package insert]. Pleasanton, CA: Roche Molecular Systems, Inc., 2016.

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