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Real-time detection of influenza virus

  • US 9,885,715 B2
  • Filed: 01/14/2014
  • Issued: 02/06/2018
  • Est. Priority Date: 05/10/2006
  • Status: Active Grant
First Claim
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1. A method of performing a trend analysis on the concentration of an analyte comprising two influenza proteins on the same influenza viral particle, said analyte concentration being indicative of an influenza viral infection in samples obtained from a subject, comprising:

  • a) providing a fluidic device comprising at least one sample collection unit and an immunoassay assembly containing immunoassay reagents comprising a first antibody that binds specifically to a hemagglutinin, and a second antibody that binds specifically to a neuraminidase;

    b) actuating said fluidic device and directing said immunoassay reagents within said fluidic device;

    c) allowing a sample of bodily fluid obtained from said subject to react with said immunoassay reagents contained within said assay immunoassay assembly to yield a detectable signal indicative of the simultaneous presence of a hemagglutinin and a neuraminidase on said same influenza viral particle in said sample;

    d) detecting said detectable signal generated from the simultaneous presence of a hemagglutinin and of a neuraminidase on the same influenza viral particle, said analyte collected in said sample of bodily fluid comprising said influenza viral particle, and determining the concentration of said analyte in said sample from said detectable signal; and

    e) repeating steps a) through d) for one or more further bodily fluid samples obtained from said subject over a period of time to detect concentrations of said analyte over said period of time, thereby performing said trend analysis.

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