The Markers of Plague is part of IGN’s Dying Light 2: Stay Human Walkthrough. In this Main Quest, Aiden gets his Biomarker.

The alert is in effect for the following Michigan Counties, Chippewa, Mackinac, Emmet, Cheboygan, Presque Isle, Leelanau, Antrim, Otsego, Montmorency, Alpena, Benzie, Grand Traverse, Kalkaska ...