Episode 15

"Acquired Immunity/Peyer's Patch" (獲得免疫/パイエル板) is the 15th episode of the Cells at Work! (Anime) anime adaption.

Plot
Acquired Immunity

One day, Memory Cell receives strange vision foretelling the of destruction of the body. Thus, leading him to believe he has the power to see the future.

And his vision becomes true when the Mumps virus invade the Parotid gland. The immune cells try to fight them. However, things get a lot worse. B Cell needs to create antibodies based on Memory Cell's information. But the latter is obsessed with trying to see the future again.

Left with no choice, B Cell slaps. Memory Cell realizes he was actually seeing his memories of the past when the body received a Mumps vaccine.

Based on this information, B Cell creates antibodies and manages to destroy the virus. After the incident, B Cell explains to everyone why it took him so long to get rid of the Mumps virus. Thus, leading the cells beating Memory Cell up.

Peyer's Patch

U-1146 takes AE3083 and NT4201 on a tour of the small intestine. But the pleasant outing takes a turn when Killer T Cell berates U-1146 for not doing his job.

To make matters worse, a Campylobacter invades the small intestine and takes an Intestinal epithelial cell hostage. The white blood cells surrender and give in to the bacteria's demands to humiliate themselves.

But this seems to be part of a plan. In reality the white blood cells were slowly luring the bacteria to a Peyer's patch where the bacteria are ambushed and destroyed.

After the incident, Killer T Cell apologizes to U-1146. But he retracts his apology when U-1146 realizes he forgot about the two red blood cells and rushes over to check on them.

New characters

 * Mumps virus
 * Campylobacter
 * Intestinal epithelial cells

Returning characters

 * Memory Cell
 * B Cell
 * U-1146
 * AE3803
 * NT4201
 * Killer T Cell