The 9th case was an infant, too young ​to receive routine vaccinations prior to a trip to South East Asia, and developed the disease after her return to Sydney. She is now recovering in hospital.

The infant was in the following locations while infectious:

• Train from Ingleburn Station to St James Station on Wednesday January 16 from 2:28pm-3:20pm

• The Strand Arcade, George Street, Sydney on Wednesday January 16 from 3:30pm-4pm

• Escape Hunt, 4/393 George Street, Sydney on Wednesday January 16 from 4pm-5:15pm

• Harts Pub, Cnr Essex and Gloucester streets, The Rocks on Wednesday January 16 from 5:30pm-7:30pm

• The Art Gallery NSW, Art Gallery Rd, Sydney on Wednesday January 16 from 8:45pm-9:15pm

• Train from Martin Place to Town Hall Station on Wednesday January 16 from 9:15pm-9:25pm

• Aqua S, 27/501 George Street Sydney on Wednesday January 16 from 9:30pm-10pm

• Train from Town Hall to Ingleburn (via City Circle) on Wednesday January 16 from 9:45pm-11:06pm

• The Macarthur Tavern, cnr Gilchrist Drive and Killicar Rd, Campbelltown, on Thursday 17 January from 10:30am-1:30pm

• North Break Café, 1/1 Park Road, Woonona on Friday January 18 from 4-4:30pm

• Piizza Pasta Please Restaurant, 4 Rennie Road, Campbelltown on Friday January 18 from 7 – 8:30pm

• Fashion Spree, 5 Viscount Place, Liverpool on Saturday January 19 from 3:30-5pm

• Officeworks, 34 Queen St, Campbelltown on Sunday January 20 from 11:30-noon

• Campbelltown Mall, 271 Queen St, Campbelltown on Sunday January 20 from noon to 2:30pm

• First Care Medical Centre, 14/100 The Parkway, Bradbury on Monday 21 January from 12:45 – 1:10 pm

• Bradbury Village Pharmacy, 100 The Parkway, Bradbury 1:10 – 1:15 pm.

People who were at these locations at the same times should be alert for measles symptoms until February 8 as the time from exposure to the onset of symptoms is from a week to 18 days.

The local public health unit is working with health services to contact other patients present at the same time and offering preventive treatment, if needed.

“If you develop symptoms please call ahead to your GP so that you do not wait in the waiting room with other patients,” Dr Sheppeard said.

“The measles-mumps-rubella (MMR) vaccine is safe and highly effective protection against measles.

“NSW Health offers free MMR vaccine via GPs for anyone born during or after 1966 who hasn’t already have two doses. If you are unsure whether you have had two doses, it is quite safe to have another dose.”

NSW Health once again urges people travelling to South East Asia where measles is prevalent to ensure they are fully vaccinated before heading overseas.

Outbreaks of measles in popular tourist destinations means the risk for measles being imported into Australia at the moment is high.

Measles is highly contagious and is spread in the air through coughing or sneezing by someone who is unwell with the disease.

Symptoms of measles include fever, sore eyes and a cough followed three or four days later by a red, blotchy rash spreading from the head and neck to the rest of the body.

For more information on measles, visit www.health.nsw.gov.au/Infectious/measles/Pages/default.aspx​