The anatid flu was a form of influenza virus. In 2268, the anatid flu afflicted the crew of Deep Space Station C-15, which spread to the nearby settlement of Tomogren. With the station's medical supplies exhausted, the Federation assigned the USS Enterprise to pick up replacement supplies from the automated production facility on Phi Kappa and transfer them to the station, interrupting the starship's plans to explore Mu Arigulon V. (TOS novel: A Choice of Catastrophes)

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