Wolfram Demonstrations Projecthttp://demonstrations.wolfram.com/An Open Resource of Interactive Mathematica VisualizationsCopyright 2009 Wolfram Demonstrations Project & ContributorsGrowth Curve and Life Cycle of Viruseshttp://demonstrations.wolfram.com/GrowthCurveAndLifeCycleOfViruses/]]>http://demonstrations.wolfram.com/GrowthCurveAndLifeCycleOfViruses/