@edge2054 @JeremyECrawfordDo the effects of Contagion start immediately or after the three saves are failed? I'd rule that the disease effects don't kick in until the third failed save

— Mike Mearls (@mikemearls) October 3, 2014

@edge2054 Thanks Mike, I was leaning that way too. The spell feels really powerful otherwise. agreed!

— Mike Mearls (@mikemearls) October 3, 2014

@JeremyECrawford How come this wasn't included in the PHB errata? Seems pretty straightforward to me.

— Jonathan Longstaff (@pukunui81) July 1, 2015

@pukunui81 Enough groups were playing it as intended that it didn't make it onto the final list of changes. Could it be clearer? For sure!

— Jeremy Crawford (@JeremyECrawford) July 1, 2015