NSW Health is urging people to be alert for measles symptoms following news another person was infected during an outbreak in western Sydney.
The latest victim, a man who contracted the virus in Quakers Hill, spent time in the Blue Mountains, Strathfield and Leichhardt before presenting to hospital on Good Friday, NSW Health said in a statement.
He was isolated and is recovering well.
There have been 22 confirmed cases of measles in NSW this year, with 16 of those cases linked to the western Sydney outbreak, communicable diseases director Dr Vicky Sheppeard said in a statement on Monday.
She said measles was highly contagious, and people who hadn't received two doses of the vaccine should be particularly vigilant.
Symptoms of the virus include fever, sore eyes and a cough followed three or four days later by a red, blotchy rash.