dennis muilenburg resigned. boeing said the change in leadership is necessary to restore confidence in the company. boeing is trying to repair its reputation with regulators, stake holders and the public after the grounding of it's 737 max aircraft last year. the model was involved in two deadly crashes. >>> in today's day first look, a new warning about the flu. >> a 4-year-old girl in iowa nearly died from the virus and is now blind. >> losing sight from the flu. >> she was, you know, just a normal bug, the flu for a couple days. all of a sudden, five days later she was unresponsive and she was sick. >> amanda phillips says her 4-year-old daughter jade who got a flu shot in march was placed on a ventilator after she was diagnosed with influenza b. >> i didn't think i would see her again. >> she was later diagnosed with a rare disease preceded by a viral infection and that affected her ability to see. jade's mom said she lost her vision and she's not sure she will get it back. coming up, we'll hear from the doctors working on this rare case and tell you what you need to know to keep your children safe. kenneth moton, abc news, new york. >>> customers who purchased infa