Colorized transmission electron micrograph of negatively stained SW31 (swine strain) influenza virus particles. Credit: NIAID.

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Photo credit: © IMAGE POINT FR / NIH / NIAID / Alamy / Afripics
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Keywords: animal, colorization, electronic, flu, imagery, infection, influenza, influenzavirus, mammal, medical, microscope, muscle, muscular, orthomyxoviridae, osteomuscular, particles, pig, rna, scientific, spotted, suid, swine, system, tem, torn, viral, virus