KATERYNA KON / SCIENCE PHOTO LIBRARY KATERYNA KON / SCIENCE PHOTO LIBRARY
Adenovirus structure, computer illustration showing the surface structure of the virus's outer protein coat (capsid). Many adenoviruses infect the respiratory tract, causing common cold-like symptoms, and also infect the eyes and gut, particularly in children. The yellow protrusions are known as penton fibres and are found at each of the 12 vertices of the capsid. Each fibre is tipped with proteins, which allow the virus to enter its target cell.
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