Avian influenza virus, TEM
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Avian influenza virus, TEM
Avian influenza virus, type A strain H5N1, coloured transmission electron micrograph (TEM). This virus was isolated in Vietnam, during the avian flu outbreak in early 2004. The virus consists of ribonucleic acid (RNA), surrounded by a nucleocapsid and a lipid envelope (orange). In the envelope are two types of protein spike, haemagglutinin (H) and neuraminidase (N), which determine the strain of virus. The natural hosts of this virus are wild birds, which show few symptoms, however infected domestic birds suffer a 90-100% mortality rate. Humans that have contact with infected birds can become infected, but no human to human transmission has yet been recorded
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Media ID 6412896
© NIBSC/SCIENCE PHOTO LIBRARY
2004 Antigen Avian Bird Capsid Envelope Enveloped False Colour Haemagglutinin Hemagglutinin Lipid Neuraminidase Nucleocapsid Orthomyxoviridae Orthomyxovirus Particle Pathogenic Pathological Pathology Polymorphic Ribonucleic Acid Segmented Genome Serotype Strain Transmission Electron Micrograph Transmission Electron Microscope Type Vietnam Vietnamese Viral Virion Virions Virological Virology Viruses False Coloured Micro Biology Microbiological Pathogen Protein Virus
EDITORS COMMENTS
This print showcases the Avian influenza virus, specifically the type A strain H5N1. Taken during the avian flu outbreak in Vietnam in 2004, this coloured transmission electron micrograph (TEM) provides a detailed look at the structure of this pathogen. The virus is composed of ribonucleic acid (RNA), encased within a nucleocapsid and an orange lipid envelope. Within this envelope, two types of protein spike can be observed - haemagglutinin (H) and neuraminidase (N). These spikes play a crucial role in determining the strain of the virus. While wild birds, which serve as natural hosts for this virus, often display minimal symptoms when infected, domestic birds suffer devastating mortality rates ranging from 90% to 100%. It is important to note that humans can also become infected through contact with infected birds; however, no instances of human-to-human transmission have been recorded thus far. This image sheds light on the biological complexity and potential dangers associated with avian influenza. Captured using a transmission electron microscope (TEM), this false-coloured photograph offers valuable insights into virology and pathology. It serves as a reminder of the ongoing battle against infectious diseases in our modern world while emphasizing the need for continued research and vigilance in understanding and combating such pathogens.
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