ตอนที่ 3: Mast Cell ถูกวิพากษ์วิจารณ์เรื่องการปล่อยฮีสตามีน ขณะที่ U-1146 ต่อสู้กับแบคทีเรียสิวในรูขุมขน

"Dengue Fever": The cells complain to Mast Cell when she releases excess histamines for a minor problem and causes inflammation, making her angry and vow not to do her job. The body gets bitten by a mosquito that sucks out several blood cells, then infects the body with the Dengue virus. The virus takes over Langerhans cells and they attack the body. Despite seeing the damage, Mast Cell refuses to release histamines until Basophil tells her to do what she thinks is right. The histamines distract the infected cells and alert the immune cells so they can wipe out the virus. The cells apologize to Mast Cell, but she gloats that she was right all along and did not do anything wrong with her previous histamine releases. "Acne": U-1146 investigates a pore that turned into a pimple and finds acne bacteria have enslaved the hair and sebum producing cells to keep them fed on sebum. The bacteria had also killed several Neutrophils and turned them into pus. A young hair cell almost gives in to despair and says they are only one hair and unimportant, but U-1146 tells him every individual is important. U-1146 fights the bacteria, but their king can regenerate indefinitely due to the sebum he consumes. Drawing on U-1146's words, the child encourages his brethren that they can help by producing an overload of sebum. The king gets so engorged that he can barely move, allowing U-1146 to kill him. U-1146 nearly drowns in the sebum, but survives. (Source: Wikipedia)

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