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Seegene, Inc. is a developer of multiplex molecular technologies and multiplex clinical molecular diagnostics for inf... read more Featured Products: More products

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Seegene's Latest COVID-19 Test Simultaneously Targets Four SARS-CoV-2 Genes and Recognizes Multiple Virus Variants

By LabMedica International staff writers
Posted on 05 Mar 2021
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Image: Allplex SARS-CoV-2 Master Assay (Photo courtesy of Seegene, Inc.)
Image: Allplex SARS-CoV-2 Master Assay (Photo courtesy of Seegene, Inc.)
Seegene, Inc. (Seoul, Korea) has finished the development of the world's first-ever variant diagnostic test that can simultaneously detect COVID-19 and screen multiple virus variants, with a single multiplex real-time PCR testing.

Seegene's Allplex SARS-CoV-2 Master Assay can detect both coronavirus and its variants in the initial round of testing. It's an ideal way of screening coronavirus genes, as the pandemic continues after being coupled with more contagious variants that have spread to at least 70 countries. The new COVID-19 test detects a total of 10 targets including four coronavirus genes (E gene, RdRP gene, N gene and S gene) as well as five defined virus variants notably spotted in the most recognized lineages. Those variants include B.1.1.7 (U.K. lineage of concern, associated with the N501Y mutation), B.1.351 (South African lineage defined by 501Y.V2), P.1 (Brazilian lineage with variants of biological significance E484K, N501Y and K417T), B.1.1.207 (U.S. lineage). Detecting four coronavirus genes in a single tube of assays can only be realized by Seegene and its unique technology, one that is extremely vital when distinguishing the virus that keeps on evolving at a fast rate.

Seegene's technology can precisely detect various types of mutant variants including those of point mutation and deletion of amino acids. Additionally, Seegene's Allplex SARS-CoV-2 Master Assay can pre-screen suspicious new variants that are believed to carry composition of the already discovered mutations. Recently multiple COVID-19 mutations have been reported to overlap, like the N501Y mutation, now being spotted in multiple lineages, after having been reported in the U.K. and South African variants. Allplex SARS-CoV-2 Master Assay can also be used in conjunction with 'Allplex™ RV Essential Assay,' a one-step assay for screening 17 target causative viruses for respiratory infections. With a single swab sample, the two provide high usability in detecting essential respiratory pathogens accurately and comprehensively.

Seegene also utilized its original technology of endogenous internal control system that verifies entire testing process, starting with the sample collection, making the less-invasive saliva sampling method a viable option. The company added the extraction-free application is currently under development. The extraction-free method can shorten the testing process and eliminate concerns over possible extraction reagent and consumable shortages. By incorporating Seegene's proprietary high multiplex technology, Seegene has become the first in the market to target both COVID-19 and variants with a single tube of reagent. The company already has over 150 multiplex diagnostic tests in its portfolio including HPV and STI assays. With the company's big data auto-surveillance in silico system, the diagnostic firm closely monitors and analyzes global databases on the coronavirus and its variants, enabling swift response with further product development.

Dr. Jong-Yoon Chun, CEO of Seegene said its new COVID-19 test will "help lessen the burden of the testing process as the turn-around-time for screening both COVID-19 and virus variants will drop to less than two hours after nucleic acid extraction." Currently, health authorities have to go through an extra round of genomic sequencing to distinguish the existence of COVID-19 variants after standard PCR tests, automatically leading to a more prolonged testing time. Dr. Chun added its "variant diagnostic test will ultimately boost massive testing ability in its fight against COVID-19, coupled with more contagious mutant variants."

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