The reversal came just hours after the federal government threatened the state, calling the prohibition on the tests “illegal.”
Six months into the pandemic and with no coherent national testing strategy, the Trump administration is encouraging private development of an array of faster and cheaper techniques.
Experts are revising their views on the best methods to detect infections, setting aside long-held standards so that the spread of the virus can be more quickly tracked and contained.
A shortage of chemicals needed to test for the virus is part of what is slowing turnaround times.
The test offers medical workers and health authorities an inexpensive tool for fast, mass screening.