Nearly all Indiana counties remain in the higher risk categories for COVID-19 spread on the state Health Department’s risk ratings.

The weekly roundup of COVID-19 news: Indiana’s COVID-19 cases dip slightly following Labor Day weekend. Gov. Eric Holcomb says the Biden administration’s COVID-19 vaccine mandate is a "bridge too far." And the Indiana Department of Health hires a company to help expand testing as demand continues to rise.

As of Friday, 83 mosquito pools positive for West Nile virus were detected in Allen, Clark, Daviess, Elkhart, Floyd, Gibson, Hamilton, Jennings, Lake, Marion, Martin, Pike, Scott, Steuben, St. Joseph, Vanderburgh and Vigo counties.

The state's contract with Kentucky-based Gravity Diagnostics will run through June of next year, with an option to extend it further if needed.

The state Health Department’s latest report showed that the current COVID-19 surge has boosted Indiana hospitalizations to 2,513 patients as of Tuesday.

School districts are quickly changing their policies in response to new Indiana Department of Health guidelines, which no longer require quarantines for asymptomatic students and staff if districts implement a mask mandate.

The Indiana Department of Health is loosening its school COVID-19 quarantine policy -- but only for schools that are masking up.

State Health Commissioner Dr. Kris Box and Chief Medical Officer Dr. Lindsay Weaver host a virtual media briefing to provide updates on COVID-19 and it impact on Indiana.

State health officials are encouraging eligible Hoosiers to get a third shot of the COVID-19 vaccine. This additional dose is different from the booster shots recently announced by the Biden administration.

State Health Commissioner Dr. Kris Box and Indiana Department of Health Chief Medical Officer Dr. Lindsey Weaver shut down misinformation Friday that an antibiotic to treat animals could be used against COVID-19.