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 BLUE BIRD: This is the bird flu virus. It may look pleasing to the eye, but it is not pleasing to the body. This nasty virus can make a bird very sick. © Matthias Kulka/Corbis © 2006 National Geographic Society. All rights reserved. |
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BLUE BIRD: This is the bird flu virus. It may look pleasing to the eye, but it is not pleasing to the body. This nasty virus can make a bird very sick. © Matthias Kulka/Corbis © 2006 National Geographic Society. All rights reserved. |