Malaria in Vietnam, Thailand, Bali

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QUESTION:

I am 5 months pregnant and I was thinking about going on holiday to Vietnam, Thailand, or Bali. What is the risk of malaria in this countries?

 

RESPONSE:

Malaria transmission occurs in all of the nations you mention, though certain areas within these nations are lower risk.

You can find out more about specific regions and local antimalarial resistance patterns at the CDC website.

You should certainly consult your prenatal doctor to discuss the variety of potential risks, in addition to malaria, associated with international travel in the developing world as you enter the third trimester of pregnancy. Malaria infection in pregnant women can be more severe than in nonpregnant women and can increase the risk for adverse pregnancy outcomes. For these reasons, and because no chemoprophylactic regimen is completely effective, women who are pregnant are usually advised to avoid travel to areas with malaria transmission if possible. If travel to a malarious area cannot be deferred, chemoprophylaxis is essential. Chloroquine containing medications are have not been found to have harmful effects on the fetus. For pregnant women travelling to areas where chloroquine resistance is present, mefloquine is usually recommended.

 

 

Malaria in Australia and Bali

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QUESTION

Is Australia, Bali or Tasmania in the malaria affected area?

ANSWER

While malaria used to be endemic in parts of Australia (not Tasmania—it is too cold), the country was declared to be free of malaria transmission in 1981. However, several hundred cases are reported in Australia every year, mainly brought back by travellers returning from other regions, such as south-east Asia and Africa.

The tropical northern region of Australia, i.e. Northern Queensland and particularly the Torres Strait area, is climatically very suitable for malaria transmission, and some local outbreaks may occur. Similarly, Bali is climatically very suitable for malaria, and some transmission does occur, though not high levels. For both Bali and northern Australia, it is not usually considered necessary to take anti-malarial medication while visiting the region, but precautions should be taken against getting mosquito bites, as this is how malaria is transmitted. Such precautions include sleeping under an insecticide-treated bednet, wearing long-sleeved clothing in the evenings and at night, and wearing insect repellent on exposed skin.