Hepatitis A is a disease of the liver spread by contaminated food or water. All those travelling to regions with a risk of hepatitis A infection should get vaccinated.

Hepatitis B is a disease of the liver spread through blood or other bodily fluids. Travellers who may be exposed (e.g., through sexual contact, medical treatment or occupational exposure) should get vaccinated.

Seasonal influenza occurs worldwide. The flu season usually runs from November to April in the northern hemisphere, between April and October in the southern hemisphere and year round in the tropics. Influenza (flu) is caused by a virus spread from person to person when they cough or sneeze or through personal contact with unwashed hands. Get the flu shot.

Japanese encephalitis is a viral infection that can cause swelling of the brain. It is spread by the bite of an infected mosquito. Risk is low for most travellers. Vaccination should be considered for those who may be exposed to mosquito bites (e.g., spending time outdoors in rural areas) while travelling in regions with risk of Japanese encephalitis.

Measles occurs worldwide but is a common disease in developing countries, particularly in parts of Africa and Asia. Measles is a highly contagious disease. Be sure your vaccination against measles is up-to-date regardless of the travel destination.
 

Rabies is a disease that attacks the central nervous system spread to humans through a bite, scratch or lick from a rabid animal. Vaccination should be considered for travellers going to areas where rabies exists and who have a high risk of exposure (i.e., close contact with animals, occupational risk, and children).

Typhoid is a bacterial infection spread by contaminated food or water. Risk is higher among travellers going to rural areas, visiting friends and relatives, or with weakened immune systems. Travellers visiting regions with typhoid risk, especially those exposed to places with poor sanitation should consider getting vaccinated.

There have been cases of cholera reported in this country in the last year. Cholera is a bacterial disease that typically causes diarrhea. In severe cases it can lead to dehydration and even death.

Most travellers are generally at low risk. Humanitarian workers and those visiting areas with limited access to safe food and water are at higher risk. Practise safe food and water precautions. Travellers at high risk should get vaccinated.

• Travellers' diarrhea is the most common illness affecting travellers. It is spread from eating or drinking contaminated food or water.
• Risk of developing travellers’ diarrhea increases when travelling in regions with poor sanitation. Practise safe food and water precautions.
• The most important treatment for travellers' diarrhea is rehydration (drinking lots of fluids). Carry oral rehydration salts when travelling.

• Dengue fever occurs in this country. Dengue fever is a viral disease that can cause severe flu-like symptoms. In some cases it leads to dengue haemorrhagic fever, which can be fatal.  
• Mosquitoes carrying dengue bite during the daytime. They breed in standing water and are often found in urban areas.
• Protect yourself from mosquito bites. There is no vaccine available for dengue fever.

There have been human cases of avian influenza ("bird flu”) in this country. Avian influenza is a viral infection that can spread by contact with infected birds or surfaces and objects contaminated by their feces or other secretions.

Avoid unnecessary contact with domestic poultry and wild birds as well as surfaces contaminated with their feces or other secretions. Ensure all poultry dishes and eggs are thoroughly cooked.

HIV (Human Immunodeficiency Virus) is a virus that attacks and impairs the immune system, resulting in a chronic, progressive illness known as AIDS (Acquired Immunodeficiency Syndrome). 

Practise safe sex while travelling, and don’t share needles, razors, or other objects which could transmit infection.

Remember that HIV can also be spread through the use of unsterile medical equipment during medical and dental procedures, tattooing, body piercing or acupuncture. Diseases can also be spread though blood transfusions and organ transplantation if the blood or organs are not screened for HIV or other blood-borne pathogens.

Hand, foot, and mouth disease is a common viral illness that mainly affects infants and children. Travellers are at increased risk if visiting or living in overcrowded conditions. There is no vaccine for this disease.

Tuberculosis is an infection caused by bacteria and usually affects the lungs.

For most travellers the risk of tuberculosis is low.

Travellers who may be at high risk while travelling in regions with risk of tuberculosis should discuss pre- and post-travel options with a health care provider.

High-risk travellers include those visiting or working in prisons, refugee camps, homeless shelters, or hospitals, or travellers visiting friends and relatives.