omicron subvariants with names from letters and numbers and their nicknames.

subvariant strain covid19 abstract set nickname omikron omicron ba275 centaurus ba46 aeterna bf7 minotaur bq11 cerberus xbb gryphon xbb15 kraken 2019ncov banner concept concern corona coronavirus coronovirus design epidemic graphic health icon isolated lineage mutant mutated mutation name national scientific sign symbol variant vector virus white subvariants names letters numbers nicknames covid-19 icons nicknames ba 2 75 ba 4 6 bf 7 bq 1 1 xbb 1 5 kraken