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How do infectious diseases spread?

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Published on Aug 12, 2013

This video shows visually how an infectious disease might spread through a group, whether it be animals or people.

Did you know? Animals and people can spread disease before they show symptoms of sickness. These members of the group are subclinically ill, and are represented by the yellow dots. The blue dots are healthy members of the group and the red dots are members of the group who are showing signs of illness.

Copyright Hurd Health Consulting. All Rights Reserved.

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