TAIPEI (Taiwan News) — An airline cabin cleaner infected by the Delta variant of COVID-19 could be linked to a coronavirus case imported from the Middle East and West Asia, the Central Epidemic Command Center said Saturday (Sept. 18).

The result of its investigation will be announced Monday (Sept. 20) at the earliest, but genome sequencing has shown the cleaning woman’s case to be different from Delta infections previously registered in Pingtung County, among EVA Air pilots, and at a New Taipei City kindergarten, CNA reported.

The woman, an employee of Taoyuan International Airport Services Co., Ltd. (TIAS), was most likely infected while cleaning the cabin of an airplane. During a comparison of her infection with other cases and a study of the list of aircraft she has worked on, there might be a link to a COVID-positive individual who arrived in Taiwan from the Middle East or West Asia, the CECC said.