NSW Health issued the alert for signs and symptoms of measles after confirming the infant’s case.
The baby returned from South Asia where there has been ongoing measles outbreaks.
Western Sydney Local Health District director of public health Dr Catherine Bateman said those who visited the hospital’s emergency department on the day between 9.30am to 3pm, to lookout for symptoms.
“Symptoms of measles include fever, runny nose, sore eyes and a cough, usually followed three or four days later by a red, blotchy rash that spreads from the head to the rest of the body," Dr Bateman said.
Measles is a vaccine preventable disease that is spread through the air when someone who is infectious coughs or sneezes.
“Symptoms may appear between 7 and 18 days after an exposure, so it's important for people to stay vigilant if they've been exposed.
“If they develop symptoms, to please call ahead to their GP or emergency department to ensure they do not spend time in the waiting room with other patients," Dr Bateman said.
Anyone born during or after 1966 are also urged they have received two doses of measles vaccine prior to overseas travel as outbreaks confirmed in several countries.
NSW Health said the measles-mumps-rubella (MMR) vaccine is safe and effective against measles and is included on the
National Immunisation Program (NIP) for children at 12 and 18 months of age.
It is also free in NSW for anyone born during or after 1966 who hasn't already had two doses.
Children aged six to 12 months can have their vaccine schedule adjusted to receive their first dose earlier if travelling to high-risk countries for measles.
The vaccine is available from GPs and pharmacies for those over five years old.
For more information, visit https://www.health.nsw.gov.au/Infectious/factsheets/Pages/measles_factsheet.aspx
For questions on signs and symptoms, contact your GP or call Healthdirect on 1800 022 222.