The Centre for Health Protection of Hong Kong's Department of Health reported on September 17, 2026 that it was investigating a locally acquired chikungunya fever case. The patient, a 55-year-old woman living on Li Tak Street in Tai Kok Tsui, developed fever, headache and joint pain in her fingers and wrists on September 7, followed by a rash. She attended Queen Elizabeth Hospital on September 16 and was admitted the same day; her blood sample tested positive and she was in stable condition.

Investigators said the woman had no travel history during the incubation period, August 26 to September 5, and was classified as a local case. She stayed home most of that period and recalled mosquito bites at her residence and near Cherry Street Park and Lok Kwan Street Park. A household contact remained asymptomatic. Hong Kong had recorded three confirmed cases that year to date, one local and two imported; last year saw 82 confirmed cases, including 11 local.

Authorities said inspections and mosquito control were carried out near her home and a hotline was operating. They said a health consultation booth was planned to open the next day at the Tai Kok Tsui Municipal Services Building, and a health talk was planned at a primary school. The CHP cited 739 chikungunya cases in Guangdong Province as of August 31, 2026, and 502,264 cases and 186 related deaths across 41 countries or territories last year.