New cases of COVID-19 rose in 27 out of 50 U.S. states in September compared with August, led by an increase of 111% in Wisconsin, according to a Reuters analysis. The Midwest states of North Dakota, South Dakota and Wisconsin all saw cases surge more than 50% month-over-month, as did Montana, Utah, West Virginia and Wyoming. Illinois had the smallest increase among the 27 states with rising cases, up 5% month-over-month. The only Midwest states where cases fell were Ohio and Indiana.