Hataraku Saibou (tv) Episode 3 -

Unlike bacteria, viruses must "hijack" a host cell's machinery to reproduce, which the anime depicts as the cells turning into "zombies".

They act as messengers, presenting antigens to T cells to trigger their activation and transition into Effector T Cells. Hataraku Saibou (TV) Episode 3

The story begins with a patrolling the body. He is inexperienced and easily terrified when he encounters cells infected by the Influenza Virus . These infected cells behave like zombies, attempting to spread the virus to others. Unlike bacteria, viruses must "hijack" a host cell's

Influenza Virus (specifically identified as Type B ). 📖 Plot Summary Hataraku Saibou (TV) Episode 3

A Macrophage appears, wielding a large weapon to clear out the virus. She identifies the virus as Type B and contacts Helper T Cell for reinforcements.