In 1958, the British physician Denis Burkitt described a pediatric tumor endemic in equatorial Africa. Burkitt set up the hypothesis of an infectious particle being involved in the pathogenesis. Six years later, particles with herpesviral morphology were detected in cultured cells derived from an African Burkitt's lymphoma. According to the three discoverers, the virus was called Epstein-Barr-(Achong) virus (EBV) by Werner and Gertrude Henle, who did the essential work to describe this virus as a separate entity apart from the morphologically similar Herpes simplex virus. Since 1968, when EBV was first shown to be the causative agent of infectious mononu-cleosis by Volker Diehl and the Henles, the virus has been related to a number of acute and malignant diseases such as Burkitt's lymphoma, nasopharyngeal carcinoma, or gastric carcinoma. Nowadays, complications because of virus reactivation or transformation become increasingly important.

Getting Started With Dumbbells

Getting Started With Dumbbells

The use of dumbbells gives you a much more comprehensive strengthening effect because the workout engages your stabilizer muscles, in addition to the muscle you may be pin-pointing. Without all of the belts and artificial stabilizers of a machine, you also engage your core muscles, which are your body's natural stabilizers.

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