The following day she went to the event again this time spending most of the day at Fangio Stand.
She also went to a Woolworths supermarket in Braybrook in the city’s west.
The new case is among a string of measles infections diagnosed in Melbourne and Sydney over the past year and health authorities say they highlight the importance of receiving a measles vaccine before travelling overseas.
While infectious, the woman visited:
- Australian Grand Prix, Jones Stand, Gate 2 entrance and food areas at Gate 1 on Saturday March 16.
- Australian Grand Prix, Fangio Stand, Gate 2 entrance and food areas at Gate1 on Sunday March 17.
- Woolworths supermarket in Braybrook between 12 and 1pm on Sunday March 17 and 1pm and 2pm on Monday March 18.
The illness was acquired in the Northern Territory, the health department said.
Late last month, an international student living in Melbourne become the third overseas traveller to contract measles in a matter of weeks while travelling in south-east Asia.
Two other people who travelled to the Philippines and India respectively contracted measles before returning to Melbourne.
In January this year, a man in his 20s was diagnosed with the infectious disease after spending hours at Colonel Tan’s restaurant at Revolver Upstairs in Prahran.
While almost all Australian children are now immune from measles through a vaccine they receive at 12 months and 18 months, some people born between 1966 and 1994 may not have received full immunisation coverage, or immunity through exposure in childhood.
“This means if you are an adult born during or after 1966, especially if you are planning travel overseas, you may be susceptible and should contact your GP to get vaccinated,” said Victoria’s newly appointed chief health officer Dr Brett Sutton.
“A free measles, mumps, rubella vaccine is available.”
Doctors have been advised to be alert for patients presenting with a fever and rash, especially if the patients attended the same places as the infected people between seven and 18 days before getting sick.
Measles, which spreads through the air by respiratory droplets produced from coughing or sneezing, can be dangerous, leading to pneumonia and other serious complications that require hospitalisation.
Symptoms include fever, a severe cough and conjunctivitis followed by a rash which starts on the face.
Individuals, especially children, are typically unwell, Dr Sutton said.
The infectious period of patients with measles is roughly five days before, to four days after, the appearance of the rash.
But it can take up to 18 days for symptoms to appear following exposure.
Melissa Cunningham is The Age’s health reporter.