Covid has not finished mutating yet, and new variants make additional cases increasingly likely.
Omicron has splintered into several subtypes, BA.1 and BA.2 among them.
BA.2 is becoming increasingly dominant in several countries, and some epidemiologists believe it is behind new peaks.
Also known as “stealth Omicron”, the variant accounts for approximately 55 percent of cases in the US.
Many people may not immediately understand they have it, as symptoms are mild.
They include a runny nose, headache, sore throat and fatigue, alongside other cold-like symptoms Covid shares.