In the year 2254 and upon graduation from Starfleet Academy, James T. Kirk was promoted to lieutenant and posted to the U.S.S. Farragut under Capt. Garrovick. On the Farragut, Kirk was a navigator and served on a crew complement of around four hundred. In the year 2264, Captain Kirk was promoted to captain, in command of U.S.S. Enterprise for a five-year mission. While on the U.S.S. Farragut as a newly-promoted lieutenant, Kirk had a tour of duty that was distinguished by his command of a survey mission to Tyree's planet Neural in 2254. There he made a guilt-plagued discovery of a creature dubbed a "cloud vampire" which led to the deaths of his captain and 200 shipmates. Although he realized that there was nothing he could have done to save them, Lt. Kirk caught and ultimately recover from Vegan choriomeningitis. He would carry the rodent-born viral infectious disease microorganisms of it in his blood the rest of his life.