Delta vs Omicron

December 31, 2021
Posted by: OptimizeIAS Team
Category: DPN Topics

Delta vs Omicron

Subject – Science and Tech

Context – Omicron to replace Delta as dominant variant: Experts

Concept –

Parameter	Omicron	Delta
Origin	The Omicron variant was first detected in Botswana (on November 11) and three days later in South Africa.	Delta variant was first identified in India in December 2020 as it swept rapidly through the country before reaching the United Kingdom and the United States.
Difference in Mutations	Gene sequencing of the Omicron variant showed that it had more mutations than the Delta variant of Covid-19. 43 aa mutations in the spike proteins of the Omicron variant. Omicron variant made health authorities more concerned as the virus is even “stickier” because of its extra mutations.	Gene sequencing of the Delta variant showed that it had less mutations than the Omicron variant of Covid-19. Researchers found 18 aa mutations in the spike proteins of the Delta. Because of its mutations, the Delta variant attaches more effectively to human cell receptors, causing it to be more infective.
Vaccine Effectiveness	Scientists speculate that Omicron could render vaccines less effective as it shares several key mutations with two previous variants, Beta and Gamma, that made them less vulnerable to vaccines.	Globally, vaccines have been able to counter Delta.
Symptoms	The symptoms of this variant are milder as compared to the Delta variant. Experts reveal that fatigue, joint pain, cold and headaches are four common signs of omicron that are different from that of the Delta variant.	The Delta variant led to severe fatalities. Loss of smell and taste, which were common signs of Delta, were hardly seen in the case of the Omicron.

Note –

The high number of mutations does not automatically mean that these variations are more dangerous, but simply that the virus has further adapted to the human species by generating another variant.