https://www.theweek.in/news/health/2023/04/03/tightly-twisted-core-of-stem-of-sars-cov-2-spike-protein-made-it.html
A 'tighter' core of the stem of the SARS-CoV-2 spike protein could be the reason for the enhanced fitness of the virus's mutant strains, according to a new research. Researchers from Pennsylvania State University, US, said that the Omicron variant's stem is a…
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