Kelsey Jordahl
@kajord
Vaccination herd immunity simulations: http://op12no2.me/toys/herd/index.php?scenario=intro
2/8/2013, 3:54:40 PM
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Kelsey Jordahl
@kajord
Vaccination herd immunity simulations: http://op12no2.me/toys/herd/index.php?scenario=intro
2/8/2013, 3:54:40 PM
Favs: 0
Retweets: 0
link