Nemours KidsHealth
How the Body Works: Immune Cells
Nate is learning about human body systems, and in this episode he finds out about how important the immune system is. The leucocyte army explains that bacteria, viruses, fungi, and parasites can pose a threat. The nose serves as the...
Bozeman Science
Immune System
Flu vaccines work by calling on the immune system to produce antibodies against the virus without actually infecting the individual with the flu. Here class members see how a virus enters cells and the body defends itself. The instructor...