Coronavirus new variants: the mutations cause and the effect on the treatment and vaccination


  • Rasha Raheem Al-Karkh Health Directorate, Baghdad, Iraq
  • Raghda Alsayed Department of Chemistry, College of Science, Al-Nahrain University, Baghdad, Iraq
  • Emad Yousif Department of Chemistry, College of Science, Al-Nahrain University, Baghdad, Iraq
  • Nany Hairunisa Department of Occupational Medicine, Faculty of Medicine, Trisakti University, Jakarta, Indonesia



coronavirus, COVID-19 strains, genomics, mutations, SARS-CoV-2, U.K. variant


The world has watched with growing alarm as scientists in the U.K.  identified a new coronavirus variant that appears to be more contagious than, and genetically distinct from, other established variants. The scientists keep collecting facts about the new variant and its impact on symptoms, severity, mortality, and vaccine efficacy. This review shed light on the SARS-CoV-2 2020 virus that appeared in Britain and South Africa in December 2020, known as B.1.1.7. Furthermore, it highlights the main differences between the new COVID-19 version (B.1.1.7) and the other strains of the virus. Mutations are still happening in the SARS-CoV-2 virus as the RNA viruses cause many changes in the proteins of the spikes of the virus and other parts. The British variant has 23 mutations, compared with the version that erupted in Wuhan, that renders the virus more contagious; however, these mutations do not change the disease's severity.


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How to Cite

Raheem, R., Alsayed, R., Yousif, E., & Hairunisa, N. H. (2021). Coronavirus new variants: the mutations cause and the effect on the treatment and vaccination . Baghdad Journal of Biochemistry and Applied Biological Sciences, 2(02), 71–79.