Monday, March 26, 2007

Severe dengue infections may go unrecognized in international travelers

Severe cases of a common travelers' infection may not be recognized if doctors rely on the World Health Organization's (WHO) guidelines for identifying it, according to a new study published in the April 15 issue of The Journal of Infectious Diseases, now available online.
Dengue is the most important emerging disease among international travelers, with a 30-fold increase in incidence over the past 50 years worldwide. Like malaria, dengue is transmitted to humans by mosquitoes.
Most cases are mild. Symptoms include fever, rash, headache, pain behind the eyes, and muscle and joint pain. According to the WHO, dengue hemorrhagic fever (DHF) is characterized by fever, low platelet count, clinical evidence of leaking capillaries, and spontaneous bleeding or fragile blood vessels. The most serious cases can lead to shock and death. There is no cure for dengue infection, but management of the disease's effects can prevent the worst outcomes.

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