Make sure you are up-to-date on routine vaccines before every trip, such as:

• measles-mumps-rubella (MMR) vaccine
• diphtheria-tetanus-pertussis vaccine
• varicella (chickenpox) vaccine
• influenza vaccine

Dengue

Dengue fever is an infection transmitted by mosquitoes in tropical and subtropical areas of the world. There is no vaccine to prevent infection, so you should protect yourself from mosquito bites at all times in dengue areas.

Chikungunya

Chikungunya is caused by a virus transmitted by mosquitoes. It is occurs in Africa, India, South-East Asia and the Western Pacific.

There is no vaccine currently available. Preventing mosquito bites is the only way to reduce your risk of infection.

Ciguatera fish poisoning

Ciguatera is a poisoning resulting from eating certain fish in particular regions in the Indian Ocean, Pacific Ocean, and the Caribbean. Mackerel caught around mid-October in Australia are a classic cause of this condition.

Leptospirosis

Leptospirosis is caused by a bacterium found in the urine of infected animals. Humans can catch the infection via skin cuts or abrasions which have been contaminated with urine from infected animals. Outbreaks are often associated with contaminated flood water, soil or mud.

You can prevent leptospirosis by:

• Covering cuts and abrasions with a waterproof dressing
• Avoiding swimming or wading in water where there is a possibility of contamination with animal urine
• Wear footwear outdoors, especially when walking in mud or moist soil.
• Control rodents by cleaning up rubbish and food sources that are close to housing.

Lymphatic filariasis

Lymphatic filariasis or elephantiasis is a tropical disease caused by parasitic worms spread by infected mosquitoes. Although most cases are symptomless, the disease can occasionally cause severe swelling in the legs, arms and genitals.

Melioidosis

Melioidosis is an infectious disease caused by a bacterium (Burkholderia pseudomallei) which lives in soil and water. It is an important public health issue in parts of Vietnam and northern Australia.

In endemic areas, people (rice-paddy farmers in particular) are warned to avoid contact with soil, mud, and surface water where possible

Tuberculosis

Tuberculosis is a disease caused by infection with the bacteria Mycobacterium tuberculosis. Tuberculosis can damage a person’s lungs or other parts of the body and cause serious illness.

• Avoid exposure to people who have active tuberculosis.
• Only consume pasteurized milk products.
• Travellers at higher risk should be tested for tuberculosis upon their return home.
• There is a vaccine available which confers partial protection. Speak to your doctor to determine if this is recommended.

Zika

Zika virus is a mild febrile illness, spread via the bite of an infected mosquito or by having sex with an infected person. Studies have shown that Zika virus infection in a pregnant woman can be transmitted to the baby, causing congenital problems such as microcephaly.

The best way to prevent Zika is to protect yourself from mosquito bites. Pregnant women should consider deferring travel to high risk countries