Watch the body's defense unfold — from the innate response to immune memory.
Invading pathogen
In this model, it represents an intracellular virus controlled by NK and CD8+ T cells in infected cells and by antibodies against free viral particles.
Vaccinate before infection
In this model, prior vaccination represents immunological memory and antibodies before exposure; the secondary response tends to be faster.
Increases replication and the number of invaders per wave to challenge the defenses.
Variant / mutation
Mobilize defenses
Healthy tissue
Select a pathogen and start the infection to watch the immune response in action.
Simulated biological time — immune events are sped up for teaching purposes.
Active cells
Macrophage
Neutrophil
NK Cell
Dendritic Cell
CD8+ T Lymphocyte
CD4+ T Lymphocyte
B Cell
Plasma Cell
Start the infection to see the real-time charts.
Timeline
No events yet.
For the best learning experience, follow this study order:
Lesson Mode
Explore each cell and pathogen card before simulating.
Simulator
Start an infection and watch the immune response in real time.
Learning Scenarios
Apply what you learned in guided situations with clear learning objectives.