Coloured TEM of Hong Kong influenza viruses

Coloured TEM of Hong Kong influenza viruses

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Credit: CDC/SCIENCE PHOTO LIBRARY

Caption: Hong Kong flu viruses. Coloured transmission electron micrograph (TEM) of Hong Kong influenza (flu) viruses. In appearance these are typical of the strains which cause other Asian flu epidemics, including Beijing influenza. Each virus is rounded in shape, some larger than others. They contain a core of ribonucleic acid (RNA), surrounded by a spiked protein envelope of haemagglutinin. The spikes adhere to host cells during infection. The virus is transmitted by coughed mucus or sneezed droplets. Influenza infection causes fever, head- ache and weakness. Spikes on the virus, however, change their structure to form new potent viral strains. Magnification: x54,000 at 6x4.5cm size.

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Keywords: asian, asian flu virus, biology, causing flu, flu, hong kong, hong kong flu virus, influenza, influenza virus, microbiology, orthomyxovirus, rna virus, virology, virus, viruses

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