Instead of surfing with mates, Brendan ended up in a Denpasar hospital with a nightmare trifecta – dengue fever, malaria AND typhoid.

This has left him very sick with extreme headache and severe sweating at all hours of the day and night.

“Surprisingly the patient’s come back positive with three kinds of diseases,” a doctor told 7 News. Instead of surfing with mates, Brendan ended up in a Denpasar hospital with a nightmare trifecta – dengue fever, malaria AND typhoid. And Brendan’s not alone. At least 50 per cent of Australians don’t get fully vaccinated before heading off overseas.

As the holiday season kicks off – and millions of people prepare to travel overseas – doctors have issued a timely warning. As the holiday season kicks off – and thousands of Australians prepare to travel overseas – doctors have issued a timely warning. Photo: 7 News

The top disease danger-zones are Southern and Southeast Asia, South America and Sub-Saharan Africa.
In Southern Asia, India, Bangladesh and Nepal are top disease danger zones, while Vietnam, Cambodia, Laos, Indonesia are on the list for South East Asia. Photo: 7 News

Peru is high of the list for South America while Sierra Leone and surrounding countries pose the world’s highest threat of malaria.

Many traveller’s lurgies like gastro require old-fashioned vigilance – hand washing, drinking bottled water and watching what you eat.

One in four Australian holidaymakers gets sick overseas and about half of them require medical attention while they are away.

But many illnesses arise from vaccine preventable diseases – such as Hepatitis A, Tuberculosis and Typhoid – and can easily be avoided. “It’s never too late to visit your GP or your travel doctor. You can even attend the day before you leave.,” Dr Barjovic said.