Dominant Alpha variant evolved to evade our innate immune system7 Jan 2022 09:30
I know this might seem like old news, but it's interesting to see that SARS-CoV-2 evolved to get even better at evading our innate immune repsonse, and has conitnued to do so: https://www.ucl.ac.uk/news/2021/dec/dominant-alpha-variant-evolved-evade-our-innate-immune-system
From the article:
"“We found that that the SARS-CoV-2 Alpha variant had adapted to avoid triggering our defensive frontline innate immune response much better than the first wave viruses. We discovered it does this by making more of the virus proteins that can disable the innate immune system. These proteins are called N, Orf6 and Orf9b and are known as innate immune antagonists."
This was posted before (apologies - can't remember who) Antagonism of Type I Interferon by Severe Acute Respiratory Syndrome Coronavirus 2: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7757701/
"SARS-CoV-2 is an enveloped virus, containing a positive-sense single-strand ~30?kb genome RNA, which encodes 16 nonstructural proteins (nsp1–16), 4 structural proteins [spike (S), envelop (E), membrane (M), and nucleocapsid (N)], and 7 accessory proteins and 8 accessory proteins (ORF3a, ORF3b, ORF6, ORF7a, ORF7b, ORF8, ORF9b, and ORF10) (Fig. 1A). Among them, the nsps are responsible for viral replication, the structural proteins for virion formation, and the accessory proteins for modulation of host response. The accessory proteins facilitate viral infection, but are not essential for viral replication."
As the virus evolves who is to say it won't get better at doing this?