ALFRED PASIEKA / SCIENCE PHOTO LIBRARY ALFRED PASIEKA / SCIENCE PHOTO LIBRARY
RNA expression by Ebola viruses. Computer artwork depicting RNA (ribonucleic acid) being released from Ebola viruses, in an infected human cell. The Ebola RNA virus causes Ebola fever in humans. At upper right, multicoloured strands of RNA are seen inside the coat (light brown) of the virus. Part of a second virus is at upper left. Tightly packed segments of released RNA are floating in the cell. This RNA genetic material instructs the human cell to make new RNA Ebola viruses. The infection causes haemorrhagic fever of epidemic proportions in Africa. Ebola fever resembles green monkey disease, including a skin rash and severe illness. Death may occur rapidly.
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