WHOOPING cough cases in Queensland are on the decline but the same cannot be said for New South Wales.
Queensland Health said the number of potentially deadly whooping cough cases across the state have started to slow.
There were 8,000 cases reported last year and so far this year there've been about 3,500.
However, the number of confirmed whooping cough cases on the New South Wales north coast is once again on the rise.
So far this year, 444 people in the region have contracted the potentially deadly disease.
That is up about a third on the five-year average.
Whooping cough is a highly contagious respiratory infection. It can affect babies, children, adolescents and adults.
For adolescents and adults the infection may only cause an irritating, persistent cough.
However, whooping cough can be life threatening for babies and young children, particularly those not fully protected by vaccination.