Coloured TEM of clusters of polio viruses (type 1)

Numéro d’image : 11833286
Coloured TEM of clusters of polio viruses (type 1)
Polio viruses (type 1). Coloured transmission electron micrograph (TEM) of clusters of polio viruses,the cause of poliomyelitis (infantile paralysis). There are three serotypes of the polio virus,and this is type 1 which causes most epidemics. Although rounded in shape (red) each virus has a cubic symmetry. They are picorna- viruses. RNA genetic material occurs in the core of each virus,surrounded by a protein coat (yellow). Infection occurs through the mouth. Usually only a mild illness results; but in more serious cases the virus may attack the nervous system causing paralysis or even death. Polio vaccines are available. Magnification: unknown
Licence : Droits gérés
Crédit: Science Photo Library / CDC
Taille de l’image : 4300 px × 3318 px
Model Release : Non requis
Property Release : Non requis
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