COVID-19 Variants: A Comparative Analysis
August 27, 2021
The Covid-19 viruses have taken forms ever since it was first discovered. Viruses constantly change due to mutation. When a virus undergoes one or more mutations, it is called a variant. Coronavirus has caused several variants across the globe.
Once a virus enters the physical body, its genetic material enters the cells and starts making copies of itself which may infect the other cells. Whenever a blunder occurs during this copying process, it triggers a mutation. Covid-19 mutations of significance are divided into three types.
- Variant of Interest
- Variant of Concern
- Variant of High Consequence.
|Variant||Originated from||Month and year||Countries affected||Symptoms|
|Alpha Variant||United Kingdom||September 2020||Minimum of 173 countries such as the United Kingdom, Bulgaria, Wales, Ireland, United States.||Chills, loss of appetite, headache and muscle aches.|
|Beta Variant||South Africa||May 2020||122 countries including United States||50% more transmissible, severe infections.|
|Gamma Variant||Brazil||November 2020||62 countries including Canada, Italy, United States||Body aches, sore throat, diarrhoea, conjunctivitis, headache, loss of taste or smell.|
|Delta Variant||India||2020||96 countries including Singapore, France, Spain, UK, USA||Persistent cough, headache, fever, and sore throat. Headache, sore throat, runny nose, and fever seem to be more common.|
|Delta Plus Variant||India||2020||Spread across many states including Punjab, Madhya Pradesh, Tamil Nadu, Maharashtra||Skin rash, change in the color of the toes, sore throat, shortness of breath, loss of smell, diarrhea, headache, or runny nose, etc.|
|Kappa Variant||India||December 2020||Minimum 50 countries which include USA, Canada, Ireland, Australia||Rashes everywhere on the body, high fever, cough, runny nose, and red and watery eyes.|
|Lambda Variant||Peru||December 2020||Minimum 30 countries counting Chile, Mexico, Germany and Argentina.||Loss of smell, taste, fever and cough.|