A factual and contextual overview of the components that make up a flu vaccine. So know what's in a flu shot and, more importantly, why it's there.

Article on +WIRED: http://ow.ly/DLsR1 

Formaldehyde and Chicken Eggs: What’s Inside a Flu Shot | WIRED
Caren Alpert Flu virus All flu vaccines start with flu viruses: genetic material packaged in an envelope of proteins and fats, studded with yet more proteins—antigens—that push the body’s immune system into action. With thousands of possible flu variants out there, the World Health Organization looks at info from 141 labs around the world to…

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