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Travellers who visit malarial locations should avoid mosquito bites and take anti-malarial drugs.

Travelling to developing nations is not encouraged during pregnancy, due to the risk of disease and the standard of medical facilities.

Any conditions that cause a rapid breakdown of blood cells can place great strain on the spleen and make it enlarge.

The most common travel-related illnesses are gastrointestinal diseases from poorly prepared foods or untreated water.

Sweat's main function is to control body temperature.

When a person is anaemic, the red blood cells have to work harder to get oxygen around the body.

Information about disaster relief for national and state emergencies.

Once hearing is damaged, it often can't be restored.

Hughes syndrome is thickening of the blood caused by abnormal immune system cells.

A mild fever up to 39°C can actually help the immune system to get rid of an infection.