Cells At Work! 3Cells At Work! 3 explores the thrilling and often dangerous world faced by a red blood cell just trying to complete her deliveries, amidst threats like strep throat, hay fever, and influenza. The human body can be a perilous place, but fortunately, she's not alone in her quest. Helping her navigate these dangers is an entire body's worth of cells ready to spring into action! There's the mysterious white blood cell, ever vigilant in defence, the tough