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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.
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.
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.
Chlamydia trachomatis bacteria. Computer illustration showing two life stages of Chlamydia: elementary bodies (extracellular non-multiplying infectious stage, small green spheres) and an inclusion composed of a group of chlamydia reticulate bodies (intracellular multiplying stage, small red spheres) near the nucleus (violet) of a cell.
Chlamydia psittaci bacteria. Computer illustration showing two life stages of Chlamydia: elementary bodies (extracellular non-multiplying infectious stage, small orange spheres outside the cell) and an inclusion composed of a group of chlamydia reticulate bodies (intracellular multiplying stage, small orange spheres inside the cel) near the nucleus (violet) of a cell. Chlamydia species are atypical bacteria in that they are obligate intracellular parasites, living and reproducing only inside cells. This species causes abortion in animals and lung disease in humans.
Chlamydia psittaci bacteria. Computer illustration showing two life stages of Chlamydia: elementary bodies (extracellular non-multiplying infectious stage, small orange spheres outside the cell) and an inclusion composed of a group of chlamydia reticulate bodies (intracellular multiplying stage, small orange spheres inside the cel) near the nucleus (violet) of a cell. Chlamydia species are atypical bacteria in that they are obligate intracellular parasites, living and reproducing only inside cells. This species causes abortion in animals and lung disease in humans.
Chlamydia psittaci bacteria. Computer illustration showing two life stages of Chlamydia: elementary bodies (extracellular non-multiplying infectious stage, small orange spheres outside the cell) and an inclusion composed of a group of chlamydia reticulate bodies (intracellular multiplying stage, small orange spheres inside the cel) near the nucleus (violet) of a cell. Chlamydia species are atypical bacteria in that they are obligate intracellular parasites, living and reproducing only inside cells. This species causes abortion in animals and lung disease in humans.
Rotavirus particle, computer illustration. This virus particle consists of an RNA (ribonucleic acid) core surrounded by a triple layered capsid. Rotaviruses are probably the most common viruses to infect humans and animals. They are associated with gastroenteritis and diarrhoea - typically infecting the intestines of children aged from 6 months to 3 years. The viruses are spread in faeces.
Rotavirus particle, computer illustration. This virus particle consists of an RNA (ribonucleic acid) core surrounded by a triple layered capsid. Rotaviruses are probably the most common viruses to infect humans and animals. They are associated with gastroenteritis and diarrhoea - typically infecting the intestines of children aged from 6 months to 3 years. The viruses are spread in faeces.