The Omicron variant is spreading rapidly and is likely to be cause of almost all local Covid-19 infections by the end of this month, according to the Department of Medical Sciences.
From Jan 11 to 17, Omicron was found in 97% of infected arrivals from overseas sampled for thorough checks, and 80% of local cases, with the Delta variant accounting for the rest, department director Supakit Sirilak said on Friday.
