Cells at Work!

The Red Blood Cell's delivery schedule is interrupted by invading pneumococci bacteria. After a White Blood Cell rescues her, she gets a surprise.

A scrape puts a major dent in the Red Blood Cell's job, but she gets to meet the White Blood Cell again as he fights the invading bacteria and viruses.

The White Blood Cell meets a Naive T Cell who's scared of the invading influenza virus. Luckily the Macrophage and Killer T Cells are there!

When a bacteria appears near the stomach wall, White Blood Cell rushes to the scene. Eosinophil is already there, but she isn't powerful enough.

It's cedar pollen season, and allergens are invading. As the Mast Cell produces histamines, the Memory T Cell insists the worst is yet to come.

Red Blood Cell recalls her past as a young Erythoblast in the red bone marrow. Always getting lost even then, a certain Myelocyte once helped her out.

NK Cell calls a common cell's bluff: turns out he’s Cancer Cell bent on spreading through the body via unchecked cellular proliferation. This means war!

Red Blood Cell wants to make it through the circulatory system all by herself, though she keeps getting lost. White Blood Cell keeps an eye on her.

The Helper T Cell and the Killer T Cell seem like polar opposites, but long ago in the thymus, they were both just young T cells with a lot to learn.

After a Monocyte rescues Red Blood Cell from a germ, she heads to the nasal cavity for a warm bath -- just in time for a Staphylococcus Aureus attack!