The flu will strike the doctors of Grey Sloan Memorial and Jackson will be one of the first to battle it on the next Grey's Anatomy.

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In a sneak peek of Thursday's episode titled "You Be Illin," Jackson is seen leaving a patient's room and announces that he will need surgery immediately. However, it's clear that the young patient won't be the only one needing some assistance.

"You look horrible," April tells him as she touches his forehead to check for fever.

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Jackson insists he's fine and says he will head back to work, but April interjects and says, "No you're not. The best thing you can do for this kid is to be nowhere near him."

Miriam, who also tells Jackson how sick he looks, adds that she'll deal with the patient's tumor. "Go home," she says.

More of the other doctors will also soon get infected, including Derek who has to fight it off quickly before he makes a speech on brain mapping. The hospital's residents also make bets on who will get sick first.

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Grey's Anatomy airs Thursdays at 9/8c on ABC.

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