A fifth case of measles has been confirmed in the Brisbane region, with the latest patient having spent time in the Valley nightclub district on the Easter weekend.
Queensland Health (Metro South) released details on the fifth case on Sunday following confirmation last week that four cases had been reported.
The last affected person's movements included visiting the Fortitude Valley entertainment precinct for four hours from 11pm, Saturday March 31.
Public Health physician Dr Bhakti Vasant said it was vital for residents, if they weren't already, to be vaccinated for measles.
"Vaccinations are recommended for anyone born after 1965, who has not had two documented doses of measles, mumps, rubella (MMR) vaccine or had proven measles," Dr Vasant said.
"Anyone who may have come into contact with an infectious person, and are uncertain of their immunity to measles should speak to their GP immediately."
Measles is one of the most infectious of all communicable diseases and is spread by tiny droplets through coughing and sneezing.
It causes fever, lethargy, moist cough, runny nose and then a red spotty rash and sore eyes a few days later. The rash often starts on the face and then becomes widespread.
Measles may lead to pneumonia, brain inflammation and other serious illness.
While extensive contact tracing was being conducted, Dr Vasant said residents in the Brisbane and Logan areas also needed to be alert for symptoms.
Symptoms usually start around 10 days after contact, but can occur between seven and 18 days after contact with an infectious person, she said.
