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:
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:
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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.