We're continuing to answer questions about the coronavirus and COVID-19, and the latest batch showed that there's still a lot of confusion about testing.

The Fairbanks School of Public Health at IUPUI tested 4,611 people around the end of April, randomly sampled to replicate the demographics of the states population. And the prevalence of the disease was around 2.8 percent.

The state's COVID-19 testing partnership with OptumServe Health Services launched Wednesday at 20 sites across the state.

Indianas expanded coronavirus testing program is set to start Wednesday at 20 sites around the state, although those tests still wont be available to everybody.

As states move toward reopening their economies, officials are emphasizing the need to expand their capacity to test for COVID-19. But many say their efforts to ramp up testing are still being hampered by a shortage of supplies.

In Marion County, black residents make up about 30 percent of the population. And early data shows they are almost twice as likely to be hospitalized or die from the virus, compared to white residents.

Free testing through the Marion County Public Health Department started in Indianapolis. The site is the Eastern Star Church on the city's east side and aims to address disparities facing black residents.

Gov. Eric Holcomb has indicated some businesses might be allowed to reopen in the coming days, if data shows health care systems arent being overwhelmed.

OptumServe Health Services will set up 20 testing sites around the state within the next week, with 50 total sites within two weeks.

The new site will be at Eastern Star Church on Indianapolis east side, an area identified with a high number of COVID-19 cases.