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There are 6 videos in this category and 9 videos in 6 subcategories.
Category Videos
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Not Right For WatchKnowLearn
Ages: 11 - 18
412 Views:
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This 13 minute video explains how a virus that killed up to 50 million people started and its effect on the world in 1918. It also shows
how scientists are trying to prevent more pandemics.
May 24, 2012 at 01:18 PM
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Not Right For WatchKnowLearn
Ages: 13 - 18
362 Views:
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A virus is genetic material without nucleus or cell. Based on "Simplification of Everything - for a Better Understanding" . (08:40)
July 10, 2012 at 03:06 PM
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Not Right For WatchKnowLearn
Ages: 6 - 18
1840 Views:
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See how a flu virus attacks, mutates, and becomes contagious—perhaps resulting in an outbreak or even pandemic. Video runs 3:47.
March 11, 2010 at 12:38 PM
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Not Right For WatchKnowLearn
Ages: 14 - 18
920 Views:
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Dengue Virus
From teachersdomain.org, produced by University of Massachusetts Medical School
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This visualization adapted from the University of Massachusetts Medical School represents the process by which a dengue virus releases its genetic contents inside a host cell, allowing viral replication. The key players are proteins found on the vira...l surface called envelope proteins, which change their structure when the virus is endocytosed, or taken inside the cell. This structural change enables the viral membrane to fuse with the endosomal membrane, and the virus' RNA to enter the cytoplasm of a host cell. There, ribosomes will make viral proteins that will spread to other cells through the replication and secretion of new viral particles. Closed captioning included. Run time 03:06.
[more]
September 12, 2010 at 02:56 PM
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Not Right For WatchKnowLearn
Ages: 14 - 18
859 Views:
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Virus hunter Nathan Wolfe is outwitting the next pandemic by staying two steps ahead: discovering deadly new viruses where they first emerge -- passing from animals to humans among poor subsistence hunters in Africa -- before they claim millions of l...ives. Armed with blood samples, high-tech tools and a small army of fieldworkers, Nathan Wolfe hopes to re-invent pandemic control -- and reveal hidden secrets of the planet's dominant lifeform: the virus. Run time 12:16.
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July 12, 2010 at 08:31 PM
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Not Right For WatchKnowLearn
Ages: 10 - 18
938 Views:
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In this video segment from The Secret of Life, you'll look through a microscope at a virus attacking a cell. Viruses continue to replicate until they break apart the host cell and start spreading throughout the body, destroying healthy cells along th...e way. You'll learn how the immune system overpowers a virus with white blood cells and creates the antibodies that kill the same types of viruses quickly if they return. Closed captioning included. Run time 01:40.
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September 11, 2010 at 10:34 PM
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