Measles virus. Transmission electron micrograph (negative stain) of a measles virus (centre),which is a type of morbillivirus. Fragments of viral nucleoprotein (part of the nucleocapsid) have been released; they have a 'herring bone' appearance. Surface spikes are visible on the outer lipoprotein membrane,or envelope,of the virus. The envelope normally encloses the nucleocapsid: a helical structure consisting of a single-stranded RNA core (genetic material) surrounded by protein. Measles is highly infectious and mainly affects children,producing fever and rash. One attack usually gives life-long immunity. Magnification: x180,000 at 8x10inch size | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / NIBSC |
Bildgröße: | 3796 px × 5067 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |