Arethian flu was an illness.
In 2371, The Doctor was in the middle of preparing a culture to test Lieutenant Hargrove for the Arethian flu when Ensign Kyoto deactivated him. (VOY: "Eye of the Needle")
Memory Alpha
Arethian flu was an illness.
In 2371, The Doctor was in the middle of preparing a culture to test Lieutenant Hargrove for the Arethian flu when Ensign Kyoto deactivated him. (VOY: "Eye of the Needle")