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Unfortunately, there is a real lack of studies comparing one triptan medication to another but in the absence of head-to-head studies, this is what we do know about triptans, one of the most commonly used …

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How Viruses Mutate: Antigenic Shift

Submitted by admin on Wednesday, May 13 2009No Comment


This 1+ minute video explains why viruses that undergo antigenic shifts are dangerous because the human immune system lacks the ability to block the virus from replicating.

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