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Yellow fever is a haemorrhagic viral illness transmitted by bites from infected mosquitoes. “Yellow” refers to the skin colour presented by some pa...
Before taking a trip abroad, travellers are advised to organise a consultation at a medical centre that has an International Health Department or a...
Amebiasis, amoebiasis, amoebic dysentery, or entamoebiasis is an intestinal disease caused by the parasite Entamoeba histolytica. This microscopic...
Dengue is a viral illness transmitted by mosquito bites and it is present in more than 125 countries around the world, mainly in urban and resident...
Jet lag, also known as time zone change syndrome, desynchronosis, flight fatigue or circadian rhythm sleep disorder is caused by an imbalance betwe...
Hypoxia is the name for a lack of oxygen in the human body and is the main cause of altitude sickness, although the exact mechanism is not understo...
Traveller’s thrombosis consists of the formation of a blood clot, typically in the deep veins of the legs. Sometimes, this clot may become dislodge...
Traveller’s diarrhoea, also known as “tourist’s diarrhoea”, is the most common health problem when travelling to countries with substandard hygiene...
Central European Encephalitis is a disease caused by the flavivirus virus that can affect the central nervous system. It is generally transmitted b...
Japanese encephalitis is a disease caused by a virus (flavivirus) that is transmitted by the bites of infected mosquitoes, and which causes inflamm...
Schistosomiasis is a parasitic infection caused by a helminth (or worm) of the genus Schistosoma. it is also known as bilharzia. This worm is acqui...
Rickettsiosis is a disease caused by different bacteria in the Rickettsiaceae family. They are transmitted to humans, in general, by the bite of a...
Constipation is difficulty in passing stool. This causes bowel movements to be infrequent or require greater effort. Although it is usually a sympt...
Bone densitometry, or dual-energy X-ray absorptiometry, is the most commonly used non-invasive test to diagnose osteoporosis.
Hysteroscopy is an endoscopic procedure for direct visualisation of the vagina, cervix and uterine cavity using an optical device (hysteroscope) in...
Refractive errors are disorders of the eye that prevent images from being properly focused on the retina, which results in blurry vision. These def...
Bronchoscopy is a procedure that allows the bronchial tree to be examined, and samples of secretions or tissues to be taken.
Urodynamic testing is a diagnostic test designed to show how the urinary bladder and the urethra are functioning. The way in which the bladder beha...
Renal lithiasis is a disease caused by the presence of calculi, or stones, inside the kidneys or urinary tract (ureter or bladder). It is also know...
Muscular diseases or myopathies are an alteration in the ability to contract muscles efficiently. Although the motor order is generated in the brai...