Subvariant COVID-19 The Omicron BA.2.86 (Pirola) subvariant is said to be the ancestor of JN.1. Due to rising infection rates in some areas, it has just come to light as a matter for concern.
Compared to Pirola, JN.1's spike protein has a single mutation. According to preliminary study data, this mutation may make it more transmissible and able to dodge immune reactions from vaccination or prior infection.