Scientists discover how smallpox may derail human immune system

University of Florida researchers have learned more about how smallpox conducts its deadly business — discoveries that may reveal as much about the human immune system as they do about one of the world's most feared pathogens.

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<p><a href="http://www.physorg.com/news161281299.html">Scientists discover how smallpox may derail human immune system</a></p> <p>University of Florida researchers have learned more about how smallpox conducts its deadly business — discoveries that may reveal as much about the human immune system as they do about one of the world's most feared pathogens.</p>