CDC / SCIENCE PHOTO LIBRARY CDC / SCIENCE PHOTO LIBRARY
Hepatitis B virus. Coloured Transmission Electron Micrograph (TEM) of Hepatitis B virus particles. Here, larger spheres known as Dane particles (at centre left) are the complete virus. The protein coat and core of each virus are seen cut through in cross-section. 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, acu- puncture, and needle sharing by intravenous drug abusers. Magnification: unknown.
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