Under the microscope, flu viruses take on shapes of their own! Check out these magnified images of influenza strains:
An influenza virus particle. Image: CDC/KAT M RESEARCH
A microscopic image of the influenza virus that created the 1918 flu pandemic. Image: CDC/Dr. Terrence Tumpey and Cynthia Goldsmith
An electron microscope image of the Avian or Bird Flu, H5N1, virus. Scientists believe that avian flu could one day become pandemic. Image: CDC/ Courtesy of Cynthia Goldsmith Jacqueline Katz Sherif R. Zaki
The swine flu virus. Image: CDC/C. S. Goldsmith and A. Balish
Learn more about the flu here: ‘The Flu and You’
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