International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
Call for Papers | Fully Refereed | Open Access | Double Blind Peer Reviewed

ISSN: 2319-7064


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Informative Article | Pathology | India | Volume 11 Issue 5, May 2022 | Rating: 4.3 / 10


Duelling Variants: Omicron BA.1 and BA.2 - A Fight to the Finish?

Snigdha Goyal


Abstract: Since the emergence of SARS Coronavirus 2 (SARS-CoV-2, in 2019, it has caused over 300 million cases and 5.5 million deaths. SARS-CoV-2 is an envelope, positive sense, single stranded RNA virus having approximately 30, 000 nucleotides. The initial virus that spread globally was characterized by a D614G change in the spike (S) protein. Within an year multiple variants emerged with several mutations in the spike protein across multiple countries - United Kingdom (Alpha), South Africa (Beta), and Brazil (Gamma). In April 2021, the Delta variant emerged- initially in India, and rapidly replaced Alpha globally over next few months.


Keywords: Variant, COVID-19, Corona virus, Pandemic, SARS


Edition: Volume 11 Issue 5, May 2022,


Pages: 908 - 909


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