The latest round of free COVID-19 from the federal government tests ships out this week.
Why it matters: High or very high levels of the virus are still present in some parts of the U.S. even though the summer COVID surge has diminished over half the country.
Texas reported low viral wastewater activity levels in the week ending Sept. 21.
Driving the news: U.S. households can order four free COVID tests from the federal government with last week's relaunch of the at-home test distribution program.