Woman who visited the ski resort town and returned to Australia tested positive.

A woman in her 20s who was visiting Aspen returned home to Australia last week and tested positive for the COVID-19 coronavirus, and now Aspen residents and visitors she had contact with at social gatherings have reported respiratory symptoms, state health officials said Sunday.

The number of confirmed coronavirus cases in Colorado remained at eight at 4 p.m. Sunday.

Colorado Department of Public Health and Environment officials said they completed 39 tests between 5 p.m. Saturday and 4 p.m. Sunday and found no more positive cases.

State and Pitkin County health officials on Sunday were trying to reach people known to have been in contact with the Australian woman during her Aspen visit.

They were “working on a plan to get symptomatic people tested,” according to the CDPHE’s latest bulletin.

“CDPHE and the State Emergency Operations Center are monitoring this issue and working closely with local health and safety agencies to support their needs.”

State officials urged anybody experiencing “mild suspected COVID19 symptoms” in Aspen to call their primary care doctor.

People at higher risk of becoming very sick from COVID-19 include adults over 80 and those with chronic medical conditions such as heart, lung or kidney disease. Health officials are advising older adults with chronic medical conditions to take action now to be prepared in case of an outbreak in their community.