Omicron Variant of Corona Virus' Covid-19 Pandemic Waves: Any Cause for Alarm?
Main Article Content
Abstract
This abstract looks at the present wave of Omicron B.1.1.529 variant of SARS-CoV-2 variant of concern (VOC) causing COVID-19 epidemic spikes across the world which was first reported in South Africa in November 2021. The viral variant has rapidly spread to all continents of the world and more than half of the countries of the world. So far while the virus is said to have a much higher transmissibility rate compared to the previous epidemic spikes caused by earlier variants, it is generally said to have a milder disease course and infects both the vaccinated and unvaccinated as well. Vaccines are said to prevent severe disease and hospitalizations in Omicron infections. If the generally milder clinical disease picture presented by Omicron continues and subsequent mutations all present a consistently milder clinical pictures, this might as well mark the beginning of the winding down of the present COVID-19 pandemic globally. Meanwhile both the non-pharmaceutical preventive measures and pharmaceutical ones (vaccines and drugs) should be sustained and intensified as we may not know the clinical disposition of the newer variants ahead.
Metrics
Article Details
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
References
Wu, A., Peng, Y., Huang, B., et al. Genome Composition and Divergence of the Novel Coronavirus (2019 nCoV) Originating in China. Cell Host Microbe. 2020; 27(3):325-328.
De Villiers CB, Blackburn L, Cook S, Janus J. PHG Foundation for FIND (the Foundation for Innovative New Diagnostics) Technical Report. Unitaid and UK aid. Https://www.finddx.org/wp-content/uploads/2021/03/COVID-variants-report-FINAL-12MAR2021.pdf. Accessed 19th December, 2021.
Vasireddya D, Vanaparthy R, Mohanc G, Malayalad S V, Atlurie P. Review of COVID-19 Variants and COVID-19 Vaccine Efficacy: What the Clinician Should Know?. J Clin Med Res. 2021;13(6):317-325.
WHO. Classification of Omicron (B.1.1.529): SARS-CoV-2 Variant of Concern. WHO News. https://www.who.int/news/item/26-11-2021-classification-of-omicron-(b.1.1.529)-sars-cov-2-variant-of-concern. Accessed 12th December 2021.
WHO Tracking SARS-Cov-2 variants. WHO. https://www.who.int/en/activities/tracking-SARS-CoV-2-variants/. Accessed 19th December, 2021.
WHO. COVID 19 New Variants: Knowledge gaps and Research. WHO R&D Blue Print. https://cdn.who.int/media/docs/default-source/blue-print/covid-19-new-variants-meeting-report_20.03.2012.pdf?sfvrsn=5ac5785_3&download=true. Accessed 19th December, 2021.
WHO. COVID 19 Weekly Epidemiological update. https://reliefweb.int/sites/reliefweb.int/files/resources/20210831_Weekly_Epi_Update_55.pdf. Accessed 10th December, 2021.
Pan American Health Organization (PAHO). https://www.paho.org/en/topics/coronavirus-infections/coronavirus-disease-covid-19-pandemic. Accessed 28th December 2021.
Roberts M. What are the Covid variants and will vaccines still work? BBC News. https://www.bbc.com/news/health-55659820. Accessed 18th December, 2021.
Cohut M. Omicron infection: What are the symptoms? Medical News Today News Letter. https://www.medicalnewstoday.com/articles/omicron-infection-what-are-the-symptoms. Accessed 29th December 2021.
Zimmer C, Ghorayshi A. Studies Suggest Why Omicron Is Less Severe: It Spares the Lungs. The New York Times. https://www.nytimes.com/2021/12/31/health/covid-omicron-lung-cells.html. Accessed 31st December 2021.
Mint. Omicron symptoms seen in kids: Everything you need to know. https://www.livemint.com/science/health/omicron-symptoms-reported-in-kids-11642081383219.html. Accessed 30TH December 2021.
Abdullah F, Myers J, Basu D, Tintinger G, Ueckermann V, Mathebula M, et al. Decreased severity of disease during the first global omicron variant covid-19 outbreak in a large hospital in tshwane, south africa. Int J Infect Dis. 2021;116:3842. doi: 10.1016/j.ijid.2021.12.357.
Helmore E. US sets new record for daily Covid cases as Omicron spreads across country The Guardian International News. https://www.theguardian.com/world/2021/dec/30/us-new-daily-covid-cases-record-omicron-spreads. Accessed 30th December, 2021.
UK Health Security Agency. Omicron daily overview: 31 December 2021. UK Summary|Coronavirus (COVID-19) in the UK(data.gov.uk) https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/1044522/20211231_OS_Daily_Omicron_Overview.pdf. Accessed 31st December, 2021.
The Economist Asia. Is India prepared for Omicron? https://www.economist.com/asia/2022/01/08/is-india-prepared-for-omicron. Accessed 29th December, 2021.
Hashim A. Pakistan confirms first case of Omicron COVID variant. Aljazeera News. https://www.aljazeera.com/news/2021/12/13/pakistan-detects-first-case-of-covid-19-omicron-variant.
Ministry of Health of Brazil. Brazil has 27 confirmed cases of Omicron variant. Agencia Brasil. https://agenciabrasil.ebc.com.br/en/saude/noticia/2021-12/brazil-has-27-confirmed-cases-omicron-variant. Accessed 30th December, 2021.
Iran (Ministry of Health). Iran Says Omicron Has Spread In 12 Provinces https://www.iranintl.com/en/202112302185. Accessed 31st December, 2021.
Sarkar AR. Australian state reports two-day record Covid case surge: 'We're all going to get Omicron'. Independent News Australia. https://www.independent.co.uk/news/world/australasia/new-south-wales-covid-omicron-b1982449.html. Accessed 31st December 2021.
Bloomberg. Covid Cases Surge in Nigeria After Discovery of Omicron Variant. Bloomberg News. https://www.bloomberg.com/news/articles/2021-12-13/covid-cases-surge-in-nigeria-after-discovery-of-omicron-variant. Accessed 30th December 2021.
Women in Business FT. China reports first Omicron case as fears mount for factory supply chains. Financial Times. https://www.ft.com/content/a0457f43-0e8b-4ce8-8fda-f32fc77e8905. Accessed 30th December 2021.