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Attention, chocolate lovers: You may not be able to help yourselves. Swiss and British scientists have linked the widespread love of chocolate to a chemical "signature" that may be programmed into our metabolic systems.
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Chancroid

Diagnosis & Tests

How is the infection diagnosed?

Diagnosis of chancroid begins with a medical history and physical exam. The Centers for Disease Control (CDC) gives three criteria for a diagnosis of chancroid.

The person has one or more painful ulcers, which may be associated with swollen lymph nodes.

Treponema pallidum\ bacteria. Less often, syphilis is transmitted from a pregnant woman to her baby. This form of syphilis is known as \congenital syphilis.\ ',CAPTION,'Syphilis');" onmouseout="return nd();">Syphilis has been ruled out with diagnostic tests.

The person's symptoms are not typical of genital herpes, or a culture for the herpes virus is negative.

The Haemophilus ducreyi bacteria that cause chancroid can only be grown on a special culture medium. That medium is not always available, and the test is only 80% sensitive for the bacteria.

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