More ways to detect people positive for Covid-19

Hanh Nguyen DNUM_BJZADZCACC 07:07

Not only can the method from Rutgers University detect who has Covid-19, it can also determine which strain they have.

Since the Covid-19 pandemic broke out, experts from Rutgers University (USA) and ResearchPath LLC Laboratory have been quickly searching for accurate and reliable nCov tests. After two years, the emergence of more and more new variants has prompted these authors to develop a molecular light-based rRT-PCR test. It helps identify whether someone has Covid-19 or not, and even determine what variant they are infected with.

The study was published in The Journal of Molecular Diagnostics on March 17. According to the authors, identifying the infected F0 variant provides important information such as incubation period and infectious stage. From there, it helps medical experts choose the most effective Covid-19 treatment method for patients.

Previously, to identify the variant that F0 was infected with, experts needed to sequence the gene, which took a lot of time. This was also very expensive, slow and required a lot of specialized equipment.
Các nhà khoa học đã có thể biết được biến chủng của F0 mà không cần giải trình tự gen. Ảnh tư liệu
Scientists have been able to know the F0 variant without sequencing the gene. Photo: Archive

However, with the molecular light rRT-PCR method, it can indicate what variant the patient is infected with very quickly, cost-effectively and especially the results are as accurate as the traditional method.

In the experiment, the authors entered 9 strains into the database, each with a different signal light, including Alpha, Beta, Gamma, Delta, Omicron. When each signal light binds to the molecules of the above strains, the test will return the corresponding color. Each signal light is tested separately to confirm its specificity to each strain.

The team tested 26 positive samples that had been sequenced. The results showed that the molecular light rRT-PCR test detected 2 people infected with Alpha, 2 people infected with Epsilon, and 8 samples infected with Delta. This was completely consistent with the traditional antibody test.

“The tools we developed help track and identify new variants. It will be very useful for pandemics and any potential viruses in the future,” said lead author of the study, Professor Ryan J. Dikdan of the Institute for Public Health Research, New Jersey Medical School, USA.

Currently, molecular light rRT-PCR testing can be deployed immediately in all laboratories globally./.
According to Zing.vn
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More ways to detect people positive for Covid-19
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