Brisbane clubbers at risk of coronavirus

A 22-year-old university student who has coronavirus spent a weekend clubbing at a popular Brisbane venue in the days before testing positive.

The University of Queensland student attended Friday's Riverside in the CBD last weekend before testing positive on Tuesday.

As a precaution, Queensland Health has called on anyone who attended Friday's, from 6pm Friday until 11pm Monday, and becomes unwell to contact 13 HEALTH.

The warning comes after Queensland's chief medical officer revealed the state's toll had topped 20 after a woman and a man, both in their 30s and from the Gold Coast, tested positive.

Earlier on Wednesday a Gold Coast university campus closed its doors to staff and students after an employee was diagnosed with coronavirus.

Southern Cross University was closed for cleaning after one of its Philippines-based staff members tested positive on Tuesday.

The man attended workshops at the university's Gold Coast and Lismore campuses from March 4 to 6 before returning to the Philippines on Saturday.

Health officials and university representatives are trying to reach 45 people in contact with or near him during his time in Australia.

The Lismore campus, in northern NSW, will also be closed and cleaned as a precaution.

The university is urging anyone feeling unwell to self-isolate and seek medical attention.

Queensland Education Minister Grace Grace banned school groups travelling overseas except for New Zealand.

Ms Grace says the measure is a protective action to contain the spread of the virus.