Hillary Clinton, it turns out, is a human woman with a human woman’s immune system. The Democratic nominee’s campaign confirmed Monday that she’d been diagnosed with pneumonia. While she’ll surely live — her doctor already says she’s “recovering nicely” — opponents across the spectrum are using the incident to revive conspiracy theories and question her fitness to seek the presidency. And, of course, to support Bernie Sanders.

Some particularly optimistic diehard fans of the Vermont Senator are using Clinton’s sniffles to mount a throwback campaign in favor of her onetime primary challenger (despite this being entirely impossible). A hashtag, #BringBernieBack, which has been quietly floating along since Sanders conceded earlier this summer, roared back to prominence in the last 24 hours, after news of her illness broke. According to a Vocativ analysis, the hashtag has been tweeted more than fifteen thousand times since Clinton first appeared ill at a 9/11 memorial Sunday morning.

Some of the tweets mock Clinton’s condition (which around one million Americans will be treated for this year) while emphasizing that the 75-year-old Sanders is in good shape. Others seem to consider a serious option of a comeback (again, it is not clear how this is even remotely possible, since Sanders lost fair and square to Clinton and then asked the world to vote for her in July).

had to explain to a friend advising me to "forget Bernie" why it's not easy to do. #OurRevolution #BringBernieBack pic.twitter.com/EqbSCrmkrX — Raffi Cavoukian (@Raffi_RC) September 12, 2016

The hashtag has already been in use by Bernie supporters since the official nomination of Clinton, usually pointing to pieces about the Clinton Foundation and the endless probe into her emails. Her illness brought the tag new life — some by real-deal Bernie supporters, but also by the standard mix of pro-Trump Republicans and trolls.