NEW South Wales Health is urging people born during or after 1966 to ensure they are fully immunised against measles.
The warning comes after NSW Health was notified of 29 cases of measles in the state in the past four weeks.
Seven of these cases were directly linked with unvaccinated or partially vaccinated travellers returning from overseas.
A spokeswoman from the Northern NSW Local Health Network said there had not been any reported measles cases in the Tweed region this year.
However Tweed residents who are planning overseas travel should make sure they have received two doses of the free measles mumps rubella vaccine at least one month apart from their GP or at a travel health clinic.
Tweed residents have been reminded by NSW Health that children or adults born during or since 1966 who do not have documented evidence of receiving two doses of MMR vaccine or evidence of measles infection are considered to be highly susceptible to measles.
Symptoms of measles include fever, sore eyes and a cough followed a few days later by a rash.