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Home > All Images > 1991 > July > 15 Jul 1991

Images Dated 15th July 1991

Choose from 5 pictures in our Images Dated 15th July 1991 collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.


Coloured TEM of rhinoviruses, cause of common cold Featured 15 Jul 1991 Print

Coloured TEM of rhinoviruses, cause of common cold

False-colour transmission electron micrograph of a group of rhinoviruses. The rhinovirus is one of the causes of the common cold, as well as other respiratory disease. It belongs in the Picornaviridae family, a group of small icosahedral viruses, 22 nanometres in diameter, which are sub-grouped according to their acid sensitivity. The genus rhinovirus is adapted to low temperatures but cannot invade the gut since it is inactivated by moderately acid conditions. The virus is spread readily in droplets produced by talking, coughing and sneezing. Magnification: x70, 000 at 6x4.5cm size

© A.B. DOWSETT/SCIENCE PHOTO LIBRARY