4BC Mornings: Queensland Health has confirmed that a 16th person has been infected by the state's recent measles outbreak, reminding the public that the disease remains "potentially fatal".
Professor Matthew Cooper from UQ's Centre for Infectious Diseases says there are concerns about the growing trend of parents choosing not to vaccinate their children.
The Doctor's Association estimates that around 70 000 kids in Australia aren't immunised and are often in geographical clusters, increasing the risk of infection.
Greg has received several emails from listeners on this topic, asking why they should be concerned about the outbreak, if they and their children are vaccinated.
According to Professor Cooper, it is still possible for an immunised person to contract a disease, under the right circumstances.
""If there's one person with measles in a room & there's enough people who aren't vaccinated, it can eventually pass through to everyone- even those who have been immunised."
Listen in as Greg Cary & Professor Cooper also discuss the concept of 'herd immunity' or what Professor Cooper calls, 'community immunity' which works when enough people are vaccinated to protect those who aren't.