But those advances haven’t trickled down to Oklahoma, where a lack of basic testing supplies has hampered the coronavirus response, says Shelley Zumwalt, chief innovation officer for the state’s Office of Management and Enterprise Services.

After struggling to obtain critical testing materials from the federal government, Oklahoma recently bought supplies to test 10,000 people on the private market. State officials are worried that without adequate testing, the disease will spread stealthily into rural areas and overwhelm communities already underserved by doctors and hospitals.

There are already signs of rapidly expanding outbreaks in some parts of the state, which reported its first case of coronavirus in early March. Over the last five days the number of confirmed infections more than doubled, to 565 on Tuesday.

“Hopefully this week and into early next week we will have a much better idea of what the population looks like as far as where the hotspots are,” Zumwalt told POLITICO. Oklahoma State University’s lab — which can process around 2,300 tests a day — will soon start testing patient samples from across the state.

Michigan, which opened its first drive-through testing site this week in the emerging hotspot of Detroit, saw its confirmed case count jump by 1,000 on Monday, and then again on Tuesday. The state ranks third nationally in deaths, with 259, but its per capita testing rate is less than one-third that of New York’s.