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Video: Signs that you have dengue fever
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Video: Signs that you have dengue fever

Dengue fever is an acute infectious disease caused by a virus called Dengue (Dague). Mosquito-borne mosquitoes carry blood from the sick to healthy people.

December 15, 2018
Video: Koala has two rare eye colors
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Video: Koala has two rare eye colors

With light blue and brown eyes, the Australian koala surprised veterinarians because the rare genetic syndrome occurs only in one of thousands of individuals.

December 15, 2018