Abstract
The new COVID-19 variants are triggering a fresh panic all around. Scientists still have not found any closely related identification of these variants in the context of their evolution. The scrupulous deletion/mutations recognized inside the spike protein of the variants are emerging with an amplified pace and are observed to be associated with the alterations in the receptor-binding region (RBD) of the spike protein. This paper highlights the reported mechanistic studies conducted on SARS-CoV-2 mutant variants; the mutant virus’s ability in response to the antibody recognition to evade the immune system in humans. The role of cellular immunity in response to its interaction with SARS-CoV-2 variants and importantly the discussion on the antibody-dependent enhancement (ADE) of SARS-CoV-2 disease with therapeutic antibodies and vaccines has been highlighted. It is expected that this may likely be interesting and helpful for readers in clearing all their presumptions related to the spreading severity of the mutant virus strains and more importantly the effectiveness of current and upcoming vaccines for its possible control.
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