5074 x 3326 px | 43 x 28,2 cm | 16,9 x 11,1 inches | 300dpi
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Electron micrograph of hepatitis B virus HBV particles or virions The infectious hepatitis B HBV virions are also known as Dane particles The complete infectious virions are 42nm in diameter and possess a nucleocapsid or core of 27nm in diameter surrounded by an outer coat approximately 4nm thick The protein of the virion coat is termed surface antigen or HBsAg It is sometimes extended as a tubular tail on one side of the virus particle The surface antigen is generally produced in vast excess and is found in the blood of infected individuals in the form of non infectious filamentous and spherical particles The Dane particles have been colored differently than the non infectious filamentous and spherical particles
