They could become more or less severe, but they could also have properties of immune escape. "Certainly, they will be more transmissible because they will need to overtake variants that are currently circulating. And more variants that emerge, we don't understand what those the properties of those variants may be." WHO expert Maria Van Kerkhove says, "Omicron will not be the last variant that you will hear us discuss, and the possibility of future emergence of variants of concern is very real. The WHO calls for following COVID appropriate behaviour in order to stop the transmission of the infection from the current as well as future variants.
On the aggressive mutation of the virus, and in view of the mild severity of the Omicron, Andrew Rambaut, an evolutionary biologist at the University of Edinburgh, UK told Nature that expecting the next variant to be milder "is bit of a myth. Rather, it would become endemic and establish itself in humans. readmoreĪ Nature article citing evolutionary biologist Jesse Bloom says that the new pathogen would not be eradicated. The coronavirus variants which are variants of interest as per WHO are Lambda and Mu. Compared with other variants, Omicron contains more mutations, in the spike that recognizes host cells, thus accounting for its transmissibility. The Omicron, B.1.1.529, variant was traced in November 2021. "Compared with other variants, including Alpha, Delta multiplies faster and to higher levels in the airways of infected individuals, potentially outpacing initial immune responses against the virus," the article says. Epidemiologists say it was 60% more transmissible than the alpha variant. The fourth variant, Delta, B.1.617.2, or the super-Alpha, as researchers call it, was identified in India in October 2020. They also carried mutations similar or identical to those spotted in SARS-CoV-2 in people with compromised immune systems whose infections lasted for months," says a Nature article.
"These three ‘variants of concern’ share some mutations, particularly in key regions of the spike protein involved in recognizing the host-cell ACE2 receptors that the virus uses to enter cells. These classifications are common to many groups, whether they are animals or men. But this is not a characteristic unique to women. The next highly transmissible variant, Gamma, P.1, was found in Brazil in November 2020. Female personalities are classified into Alpha, Beta, Gamma, Omega, Delta, and Sigma. The Beta variant, B.1.351, was found in South Africa in May 2020. The Alpha variant, B.1.1.7, was first found in the United Kingdom in September 2020, as per WHO. So far, five variants of coronavirus have been labelled as variants of concern:
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