Also on high alert over the latest Omicron variant is North Koreawith the tightening of its virus curbs potentially further delaying the reopening of their border with China.
The North's state media reported Monday that the newest COVID-19 variant is causing worldwide concern, pointing out that it's five times more infectious than the Delta variant.
It then noted that the regime is putting all efforts into blocking the virus' spread.
Signs of the border with China reopening have been seen in recent weeks, but watchers say the emergence of Omicron could keep the borders shut even longer.