Victoria's acting chief health officer Brett Sutton said the man in his 20s may have been infectious while in and around the Southbank area and Melbourne Airport between February 4 and 7.

The man caught a Skybus from Southern Cross Station to Melbourne Airport, where he then took a Virgin Australia flight to Perth. He was aboard VA691 on Thursday 7 February 2019, which departed Melbourne at 5.35pm and arrived at 6.50pm (Perth time) 

The Health Department has advised people to keep an eye out for the symptoms of measles, which include a fever at the start of a rash, particularly if they were at any of the places below in the seven to 18 days prior to onset of illness.

Monday 4 February – 2 Southbank Blvd and 42 Balston Street, Southbank 

Tuesday 5 February – 2 Southbank Blvd and 42 Balston Street, Southbank 

Wednesday 6 February – 2 Southbank Blvd and 42 Balston Street, Southbank 

Thursday 7 February – 2 Southbank Blvd, Southbank; Skybus from Southern Cross Station to Melbourne Airport; Tullamarine Airport Terminal 3; Virgin Australia flight VA691 to Perth.

The infectious period of patients with measles is roughly five days before, to four days after, the appearance of the rash.

Children or adults born during or since 1966 who do not have documented evidence of receiving two doses of a measles-containing vaccine or do not have documented evidence of immunity are considered to be susceptible to measles. People who are immunocompromised are also at risk.

The Health Department has advised people to check their immunisation records.  Free measles-mumps-rubella (MMR) vaccine is available for adults born during or since 1966 who do not have documented evidence of receiving two doses of a measles-containing vaccine or do not have documented evidence of immunity..

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