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As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

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HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

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Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

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Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

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Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Retinopathy. Illustration of a normal retina (left) and a diseased retina (right). The diseased reti Retinopathy. Illustration of a normal retina (left) and a diseased retina (right). The diseased reti
Comparison of Type 1 and Type 2 Diabetes Comparison of Type 1 and Type 2 Diabetes
Severe periodontitis in a patient with uncontrolled diabetes. Severe periodontitis in a patient with uncontrolled diabetes.
Agents Used in the Treatment of Diabetes Mellitus Agents Used in the Treatment of Diabetes Mellitus
The metabolic abnormalities in diabetes The metabolic abnormalities in diabetes
A GWAS study for Type 2 diabetes revealed 386,371 genetic markers, clustered here by chromosome numb A GWAS study for Type 2 diabetes revealed 386,371 genetic markers, clustered here by chromosome numb
Video: Role of transport in a cell

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