Just five years ago, Australia was declared free of measles - but now, the number of infections continue to climb, with 92 confirmed cases of the virus so far in 2019.

Meanwhile, 25 Queenslanders and 17 South Australians have died of the flu so far this year.

And health experts predict as many as 4,000 people on our shores will lose their life from complications due to influenza in 2019.

"People get blasé about measles because we seem to be winning," said Professor David Isaacs, consultant paediatrician at the Children Hospital at Westmead and Clinical Professor in Paediatric Infectious Diseases at the University of Sydney.

"Last year, 72 children died from measles in Europe.

"Luckily in Australia, we're doing better than that. But we're still seeing cases of people going overseas who aren't immunised and then bringing measles back into the country."

Lawmakers in Germany are considering a new law that would fine parents if their children aren't vaccinated against measles.

If approved, the law would go into effect by March 2022, and would require parents to provide proof of their children's vaccinations by mid-2020.

"In Australia, we immunise 95 per cent of our children. So there's only five per cent not being immunised," Isaacs said.

"Say 50 children are immunised. 49 of them are protected, and one might still get measles.

"If it was your child that got measles because of someone else not immunising their child, you would rightly be very upset.

"If we get to that situation where there's lots of measles, and our immunisation levels drop, then you could imagine we'd say it should be compulsory, to protect your children."

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