Infectious Diseases prevalence is Moderate in Detroit, Detroit, Ann Arbor, and Grand Rapids.
Allergy prevalence is Extreme in Detroit, Detroit, Ann Arbor, and Grand Rapids.
Pollution prevalence is Low in Detroit, Detroit, Ann Arbor, and Grand Rapids.
Severe Weather prevalence is Low in Detroit, Detroit, Ann Arbor, and Grand Rapids.
Last updated: October 14, 2026
Data refreshed weekly