Grey's Anatomy (2005)

S9E20 She's Killing Me

After hearing some alarming news, Meredith and Derek take measures to safeguard their children's future. Meanwhile, a team of Syrian doctors arrives at Grey Sloan Memorial Hospital for an intensive training session in essential surgical techniques to use in their homeland. April makes the decision to be honest with Matthew about her virginity. On another front, several pre-op patients begin to experience infections, leading one doctor to question whether she might be to blame.