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REVIEW ARTICLE
Year : 2020  |  Volume : 4  |  Issue : 5  |  Page : 13-18

The importance of genomic changes of SARS-CoV-2 and its comparison with Iranian-reported COVID-19 sequencing; Whether each country has to design its treatment and vaccine production


1 Mycobacteriology Research Center, National Research Institute of Tuberculosis and Lung Disease (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
2 Department of Biotechnology, School of Advanced Technology in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran

Correspondence Address:
Prof. Parissa Farnia
Mycobacteriology Research Center, National Research Institute of Tuberculosis and Lung Disease (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran
Iran
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/bbrj.bbrj_122_20

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Coronavirus (COVID-19), a type of RNA virus, has a positive, single, sense stranded RNA. Studies of coronaviruses have shown high mutations in the virus's RNA. The more the virus infects people, the more the genome will mutate. In addition, evolutionary and genetic studies have the potential to recombine and easily jump from one host to another host. This means flexibility to adapt to new conditions and proliferation in new host cells. Examination of the hosts of this virus shows their extent. Studies show that the virus closely resembles hosts such as bats and pangolins. Genomic studies on severe acute respiratory syndrome coronavirus (SARS-CoV)-2 and bat coronavirus (RaTG13) showed 96.2% genetic similarity although there are differences in the nucleotides of different hosts. The importance of examining mutated areas in coronaviruses for diagnosis and treatment is necessary because molecular methods such as RT-PCR, although having a specific probe, may not cause a connection between the primer and the specific probe and cause a false-negative response be reported. This issue has led various countries to sequence SARS-CoV-2 for their own countries, eventually leading to the identification of specific drugs and vaccines for their country.


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