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Walking in snow

Travel guide

Are there any diseases you want to know more about or do you have concerns about travelling? Find the answers in our travel guide.

It is important that you feel safe when travelling. On these pages you’ll find good advice on health risks, travel security, vaccinations and much more. Our articles are only meant as a guide. If you have any doubts, consult your own doctor or a specialist in order to get full information about your health, your destination and the duration of the journey.


Altitude sickness
Altitude sickness is the name of a number of symptoms that can affect healthy persons during ascent to high altitude.


Central European Tick-Borne Encephalitis (TBE)
Central European Tick-borne Encephalitis is caused by the tb-virus transmitted through the bite of ticks.


Dengue fever
Dengue fever is a virus transmitted by mosquitoes. The disease can affect people in different ways, from minor to severe reactions.

Diarrhoea (Travel Diarrhoea)
Diarrhoea is one of the most common problems for travellers.

Diphtheria is a serious respiratory disease caused by bacteria.

When diving, you should be aware of the potential dangers of decompression sickness.

Deep blood clots can e.g. be caused by air travel or other sedentary conditions, but they can also be caused by defects in the veins as a...


Hepatitis A (inflammation of the liver)
Hepatitis A is caused by an infection with the hepatitis A virus. You can protect yourself in different ways.

Hepatitis type B
Hepatitis B is caused by an infection with the hepatitis B virus (HBV).

HIV and Aids
The HIV infection is caused by infection with HIV (Human Immunodeficiency Virus) and causes Aids. HIV spreads from person to person through body...


Influenza is a virus infection. In the Northern hemisphere, epidemics occur from December to April, and in the Southern hemisphere from April to...


Japanese Encephalitis
Japanese Encephalitis is caused by the infection of a virus transmitted through different kinds of mosquitoes. The infection is not transmitted...


Cholera is caused by intestinal bacteria which cause an acute gastrointestinal infection with serious, aqueous diarrhoea and vomiting.


Malaria is a disease caused by a parasite carried by mosquitoes and transmitted to humans by bites. The mosquito bites almost only between sunset...

Meningococcal disease
The meningococcal bacteria can cause both cerebrospinal meningitis and blood poisoning.

Mosquito bites
Diseases like malaria, dengue fever and yellow fever are transmitted by mosquito bites.


Pneumococcal infection
The pneumococcal bacteria cause sinus infection, ear infection and serious pneumonia, blood poisoning and encephalitis.

Polio is caused by infection with a virus, of which there are three different types. Infection with one type of virus does not, however, protect...

Before travelling, women who are pregnant or who are contemplating pregnancy should find out which medical services are available at their...


Rabies - hydrophobia
Rabies is caused by an infection with a virus which can result in fatal brain infection. Virus is present in wild animals and can be transmitted...


Tetanus bacteria are present in the soil and street dirt and are common world-wide.

Tuberculosis is still common in many parts of the world. The bacteria is secreted from the respiratory passages and is transmitted through...

Typhus (typhoid fever)
Typhus (typhoid fever) is a serious bacterial infection (Salmonella Typhi) which is transmitted through food or polluted drinking water. The...


Yellow fever
Yellow fever is a viral disease with a high dead rate. The virus is transmitted by mosquitoes.