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This image is an anaglyph in which a stereo image pair is combined into a single image using colour to separate the two views. To see the 3D stereo effect, you will need to use red green colour filter glasses (red for your left eye and green for your right eye). Such glasses can be obtained from your optometrist or specialty supplier. It is worth obtaining high quality anaglyphic glasses to achieve the best possible sense of depth. Cheap filters can often be found in novelty 3-D books. SEE HOW ANAGLYPHS ARE MADE.
VIRAL REASSORTMENT IN A PIG: two strains of influenza are shown infecting the same cell in a pig. From that cell emerges a hybrid virus that takes genome segments from strain 1 and strain 2 to create new reassortant. Flu viruses have segmented genomes which allows this jumbling of genetic segments to occur. Mexican Flu or Swine Flu is a reassortant generated from human, bird and pig flu viruses. Mexican Swine flu is now a pandemic (see WHO page and the CDC page and the Australian Government page on swine flu status).