Question: How many days after the episode aired where Beckett creates a gene therapy did the episode air where Beckett helps the Hoffans develop a drug that kills the Wraith who feeds on humans? Passage 1:While in the Antarctic outpost in the pilot episode "Rising", Dr. Rodney McKay forces Beckett to sit in an Ancient control chair. Beckett's Ancient gene causes him to accidentally activate a drone weapon zeroing on General O'Neill and Major Sheppard's helicopter, but he manages to stop it. After finding and arriving in the city of Atlantis, Beckett examines a severed Wraith arm that Major Sheppard brought back from the planet Athos. Beckett can provide the first information about Wraith physiology and becomes the chief medical officer in Atlantis. In "Hide and Seek", he creates a gene therapy that emulates the ATA gene in normal humans with a 48 percent success rate. In "Poisoning the Well", Beckett helps the Hoffans develop a drug that kills the Wraith who feed on humans, but the drug has the side effect of killing 50 percent of the human recipients as well. One of the casualties is Perna, a Hoffan woman he has grown attached to. Carson leaves in disgust when the Hoffans decide to disseminate the drug among their people at all costs. In "The Gift", he discovers that Teyla has Wraith DNA in her genetic makeup, which allows her to tap into the Wraith psychic network in this and future episodes. In the second season, Beckett takes up more offworld activities, including one mission where he removes a Wraith tracker from Ronon Dex's spine in "Runner".
 Passage 2:"Glamorous Sky" is Mika Nakashima's 16th single overall, her 1st under the name Nana starring Mika Nakashima, and the second most successful single in her career after "Stars". It is her first rock song and it was used as one of the image songs for the film Nana (as one of the bands Black Stones' song). Hyde of L'Arc-en-Ciel composed "Glamorous Sky", while Yazawa Ai wrote the lyrics. The second and third B-sides, "Blood" and "Isolation" were used as CM songs for Kate cosmetics. Mika Nakashima graces the cover of the single as Nana Osaki. The song is featured as a cover by a jrock band, Girugamesh, in the Konami music games, BEMANI for Drummania V3 and Guitarfreaks V3, as well as the iNiS rhythm game Moero! Nekketsu Rhythm Damashii Osu! Tatakae! Ouendan 2.
 Passage 3:Osterhage began his acting career in a television adaptation of  in 1978 and starred in the 1979 TV movie The Legend of the Golden Gun. He is probably most recognizable to western fans in his role as Tyrel Sackett in the 1979 western The Sacketts, followed by the 1982 The Shadow Riders, both being film adaptations of novels by western novelist Louis L'Amour. The Shadow Riders is not a part of the "Sackett" book series, and the actors play totally different roles. In both films he starred opposite Tom Selleck and Sam Elliott. In the first film he also starred alongside western legends Ben Johnson and Glenn Ford, with Johnson also starring in the second. Osterhage has appeared in twenty-seven films, made-for-television movies, and television series appearances in TV series including The Dukes of Hazzard, Knight Rider, T. J. Hooker, Scarecrow and Mrs. King, Murder, She Wrote, Moonlighting, Simon & Simon, Matlock, as well as the computer game . His latest appearance is in the 2008 film Taken by Force. He also played Marshal James Anderson in the computer game Outlaws, released in 1997.

Output: 1