Breckenridge's Scourge

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Breckenridge's Scourge wiped out most of the population on Mictlan in 2982. It took a week to incubate. Biocustoms on Mictlan said that standard decontamination might not kill it. (PROSE: So Vile a Sin)

But first seen in The Court Jester with Danny Kaye and Glynis Johns