alb3798191

Measles Virus, TEM

Transmission electron micrograph (TEM) revealed the ultrastructural appearance of a single virus particle, or "virion", of the measles virus. The measles virus is a paramyxovirus, of the genus Morbillivirus. It is 100-200 nm in diameter, with a core of single-stranded RNA, and is closely related to the Rinderpest and canine distemper viruses. Two membrane envelope proteins are important in pathogenesis. They are the F (fusion) protein, which is responsible for fusion of virus and host cell membranes, viral penetration, and hemolysis, and the H (hemagglutinin) protein, which is responsible for adsorption of virus to cells. There is only one antigenic type of measles virus. Although studies have documented changes in the H glycoprotein, these changes do not appear to be epidemiologically important (i.e., no change in vaccine efficacy has been observed).

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Titre: Measles Virus, TEM

Légende: Voir la traduction automatique
Transmission electron micrograph (TEM) revealed the ultrastructural appearance of a single virus particle, or "virion", of the measles virus. The measles virus is a paramyxovirus, of the genus Morbillivirus. It is 100-200 nm in diameter, with a core of single-stranded RNA, and is closely related to the Rinderpest and canine distemper viruses. Two membrane envelope proteins are important in pathogenesis. They are the F (fusion) protein, which is responsible for fusion of virus and host cell membranes, viral penetration, and hemolysis, and the H (hemagglutinin) protein, which is responsible for adsorption of virus to cells. There is only one antigenic type of measles virus. Although studies have documented changes in the H glycoprotein, these changes do not appear to be epidemiologically important (i.e., no change in vaccine efficacy has been observed)

Crédit: Album / CDC/Science Source

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Taille de l'image: 3750 × 3776 px | 40.5 MB

Taille d'impression: 31.8 × 32.0 cm | 1476.4 × 1486.6 in (300 dpi)

Mots clés: CONTAGIEUSE • INSALUBRE • MEDICAL • MICROBIOLOGIE • MICROSCOPIQUE • PATHOLOGIE • ROUGEOLE • VIROLOGIE • VIRUS