Researchers Developed New Influenza D Detection Test
A new field-deployable assay provides a cost-effective way to detect influenza D virus RNA in under an hour.
Updated on Sept. 21, 2026 in Diseases — General
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Scientists have created a reverse transcription loop-mediated isothermal amplification (RT-LAMP) assay designed to detect influenza D virus. The test functions at a constant temperature to provide results in less than one hour.
Why it matters
The development provides a portable, accessible alternative to standard PCR testing for monitoring influenza D virus. This tool aims to improve global preparedness for potential emerging viral threats.
The assay shows 99.2% specificity, with sensitivity reaching 95.6% for cycle quantification under 30 and 81.8% for values under 40. Seroprevalence rates in cattle-exposed human cohorts have been measured at 97%.
The details
The RT-LAMP assay detects viral RNA as a practical substitute for quantitative reverse transcription PCR in field environments. While influenza D virus antibodies have been detected in various animal species like horses, goats, and camels, researchers have yet to identify an active influenza D virus infection in humans.
Timeline
2005: Seroprevalence of influenza D virus in the Italian general population was 5%.
2011: Influenza D virus was first discovered in pigs in Oklahoma.
2011: Seroprevalence in the general human population of the United States and Canada was 1.3%.
2014: Seroprevalence of influenza D virus in the Italian general population reached 46%.
The Big Picture
This development follows the established trajectory of the ongoing surveillance protocols for zoonotic influenza. By improving detection capabilities, this test integrates into broader scientific efforts to monitor emerging pathogens before they impact the general population.
This diagnostic tool does not currently alter individual patient treatment, as no active human influenza D infections have been clinically reported. However, it enhances public health capability to detect and manage potential zoonotic threats in agricultural and research settings.
The takeaway
While the influenza D virus has become prevalent in various animal populations, its status as a human pathogen remains an area of ongoing scientific investigation. This new assay provides the necessary infrastructure to track the virus more effectively across diverse environmental settings.
Further reading
Find more on the evolution of viral monitoring at Diseases — General.
Source note: This article includes information reported by Cdc.
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