3 - Hataraku Saibou (tv) Episode

Cells at Work! (TV Series 2018–2021) - Episode list - IMDb

For fan theories and medical deep-dives, check out the episode discussions on Reddit's r/anime . Hataraku Saibou (TV) Episode 3

With the combined efforts of the White Blood Cells, Macrophages, and the now-activated T Cells, the infection is cleared. 🔬 Biological Concepts Explained Cells at Work

Influenza Virus (specifically identified as Type B ). 📖 Plot Summary and the now-activated T Cells

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.

Naive T Cell, Macrophage (major appearance), Dendritic Cell.