From Akane Shimizu, winner of Shounen Sirius' Rookie Award, comes an informative tale about anthropomorthized cells!
 
Strep throat! Hay fever! Influenza! The world is a dangerous place for a red blood cell just trying to get her deliveries finished. Fortunately, she’s not alone … She’s got a whole human body’s worth of cells ready to help out! The mysterious white blood cell, the buff and brash killer T cell, the nerdy neuron, even the cute little platelets—everyone’s got to come together if they want to keep you healthy!
 
(Source: Kodansha Comics & MangaUpdates)
 
Note: Contains the spin-off one-shot "Hataraku Saibou: Kansen-hen".

A short animation about Platelets at a movie theater that released with the screening of "Hataraku Saibou!! Saikyou no Teki, Futatabi. Karada no Naka wa "Chou" Oosawagi!." Later released on the movies Blu-ray.

Jitome-chan