EVANSVILLE, Ind. — Posey and Warrick counties returned to "yellow" status this week with upward trending positive test rates. The Indiana State Department of Health publishes a color-coded map each week on Wednesday, with four colors each signaling a particular severity of the outbreak. Vanderburgh is the only Evansville-area county this week to remain in the "blue," which connotes minimal spread of the virus, despite an increasing rate of positive testing of 69 per 100,000 of population. Posey, with 51 per 100,000, and Warrick, with 71, joined Gibson, with 136, in the yellow category connoting moderate spread of COVID-19. Confirmed case numbers also increased Wednesday with 30 in Vanderburgh, 10 in Warrick and three each in Posey and Gibson, as reported on the Indiana State Department of Health website, along with two coronavirus-related deaths. Those were in Vanderburgh and Gibson counties.