Interesting, but not especially relevant. Omicron has biologists worried because it appears to be different enough that it may be able to evade the immune defe

Interesting, but not especially relevant. Omicron has biologists worried because it appears to be different enough that it may be able to evade the immune defenses that we have to the existing SARS-Cov-2 strains. The thing they are afraid of is that you can catch both viruses, and get the disease twice.