Data Source For Areas Affected
The maps designate countries considered to be affected by a disease. Areas within countries may or may not be affected by a specific disease. Consult with a Travel Healthcare Provider or www.cdc.gov/travel about your specific itinerary prior to travel. Reporting activity data are provided by Sitata and derived from numerous sources, including official surveillance data and news reports. Reporting activity does not reflect current risk of infection with a disease. Not all areas report cases of disease; therefore, the absence of activity on the map does not indicate that a disease is not present. The relationship between the intensity of reporting activity and actual disease transmission is unknown and does not indicate a difference in risk. Maps do not reflect differential distribution of diseases within a country.
Chikungunya is an arthritic disease, commonly associated with joint pain and stiffening. It re-emerged in 2005 and subsequently spread globally. Often found in the same tropical environments as dengue and Zika, chikungunya has also caused outbreaks in more temperate environments, such as southern Europe. There is only one virus known to cause chikungunya disease.
Learn moreA single encounter with an infected mosquito is all that is needed to become sick with chikungunya. The mosquitos that spread chikungunya prefer to live in and around human residences, and bite throughout the day.
Learn moreMost people experience symptoms, which include:
Chikungunya is rarely fatal.
Learn moreTalk to a travel healthcare provider about how to avoid mosquito bites by the mosquitos that transmit chikungunya, dengue, and Zika. Some options include:
Dengue is a viral disease spread by mosquitos. Dengue affects as many as 390 million people globally every year and can cause severe, life-threatening illness. It occurs in warm, humid environments throughout the Americas, Africa, Asia, the Pacific Islands, and parts of Australia. There are four different viruses that cause dengue, all transmitted by the same mosquitos.
Learn moreA single encounter with an infected mosquito is all that is needed to become sick with dengue. The mosquito that spreads dengue prefers to live in and around human residences in urbanized areas, and it bites throughout the day.
Learn moreDengue is very similar to Zika and chikungunya. Symptoms of dengue include:
In most cases, symptoms last five to seven days. Fatigue and depression may persist for weeks after the illness.
Learn moreTalk to a travel healthcare provider about how to avoid mosquito bites by the mosquitos that transmit chikungunya, dengue, and Zika. Some options include:
Hepatitis A is a liver disease caused by a virus. Hepatitis A virus is widespread and can be found in multiple regions of the world, including Africa, Asia, Europe, and the Americas. Symptoms of hepatitis A vary and depend on the age of the person infected. Children under age six may have mild disease or not have any symptoms at all. Older children and adults may have mild to severe symptoms, and recovery may be slow.
Learn moreContaminated food and water are common ways that hepatitis A is spread. Hepatitis A is spread by human waste containing the virus. Poor sanitary conditions, as well as poor personal hygiene, may lead to the spread of hepatitis A.
Learn moreChildren under age six may have mild disease or no symptoms at all. Among older children and adults, symptoms may range from mild to severe. These may include:
Some hepatitis A precautions include:
Japanese encephalitis is caused by a virus that is spread by mosquitos. The Japanese encephalitis virus may be found in areas of Southeast Asia and the Western Pacific region. Although most Japanese encephalitis infections are mild (fever and headache) or have no symptoms, a small proportion develop clinical disease.
Learn moreJapanese encephalitis is spread by mosquitos. The mosquitos that spread Japanese encephalitis are found in rural and suburban settings, are active at night, and bite people both indoors and outdoors. For most travelers, the likelihood of acquiring Japanese encephalitis is extremely low.
Learn moreMost Japanese encephalitis infections are mild (fever and headache) or cause no symptoms. A small proportion of people progress to severe Japanese encephalitis, which can include:
Try to reduce the likelihood of mosquito bites. Some precautions include:
Typhoid fever is a potentially life-threatening illness caused by the bacteria Salmonella Typhi. Typhoid fever is found in most parts of the world (except industrialized regions); travelers are especially prone in Asia, Africa, and Latin America.
Learn moreConsuming contaminated food and water increases chance of infection. Another source of typhoid fever infection includes contaminated water that is used for drinking or washing/preparing food. Typhoid fever is more common in areas of the world where routine handwashing is not practiced and water treatment is not to standard.
Learn moreWith typhoid fever, some people may only have a fever that comes on gradually but increases over the first week of illness. Others may have additional flu-like symptoms, including:
Some typhoid fever precautions include:
Keep in touch with us and be the first to know about TravelHealthConnect® promotions and giveaways, along with health tips and information that can help you travel with more peace of mind.
This Site Does Not Provide Medical Advice. The content is intended for informational purposes only and should not be used to replace a discussion with a healthcare or travel health professional. Always seek the advice of your doctor with any questions you may have about your health. The content on this site has been created for U.S. residents only.