Hepatitis B virus. Coloured Transmission Electron Micrograph (TEM) of Hepatitis B virus particles. These particles, also known as Dane particles, are each a whole virus. The spiked outer protein coat is seen. Hepatitis B virus is the cause of "serum hepatitis" or hepatitis B. The virus attacks the liver, producing liver inflammation, flu-like symptoms, followed by jaundice. Hepatitis B is a sexually transmitted disease. It is also spread by infected blood through blood transfusions, tattooing, acupuncture, and needle sharing by intravenous drug abusers. Magnification: x200,000 at 6x4.5cm size.
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