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The dynamic of the virus-host interaction is subject to constant evolution, which makes it difficult to predict when the SARS-CoV-2 pandemic will become endemic. Vaccines in conjunction with efforts around masking and social distancing have reduced SARS-CoV-2 infection rates, however, there are still significant challenges to contend with before the pandemic shifts to endemic, such as the coronavirus acquiring mutations that allow the virus to dodge the immunity acquired by hosts. SARS-CoV-2 variants deploy convergent evolutionary mechanisms to sharpen their ability to impede the host’s innate immune response. The continued emergence of variants and sub-variants poses a significant hurdle to reaching endemicity. This underscores the importance of continued public health measures to control SARS-CoV-2 transmission and the need to develop better second-generation vaccines and effective treatments that would tackle current and future variants. We hypothesize that the hosts’ immunity to the virus is also evolving, which is likely to abet the process of reaching endemicity.
Haque et al. (Mon,) studied this question.