The doctors on Grey's Anatomy may have just dealt with a major flu outbreak in the hospital.
But they aren't finished facing some serious problems in the hallways of Grey Sloan Memorial.
On Grey's Anatomy Season 10 Episode 19, the focus will be on a young boy without an immune system, someone who is only in a safe place when he's in isolation.
Watch the following teaser to get an idea of the dangers ahead:
It won't be all bad news next Thursday night, however.
Cristina will be nominated for a Harper Avery Award, though she'll do her best to temper her excitement.
Elsewhere: Alex wil consider the offer made to him on Grey's Anatomy Season 10 Episode 18, while Derek and Callie work with a machine that can recognize emotions. Cool, huh?
Watch Grey's Anatomy online right here and now if you need to catch up and prepare for another heart-stopper (not literally, we hope) on April 10.