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Data: The COVID Tracking Project, state health departments; Map: Andrew Witherspoon, Sara Wise, Naema Ahmed/Axios

Texas, Arizona and Oregon saw significant spikes last week in new coronavirus infections, while cases also continued to climb in a handful of states where steady increases have become the norm.

Why it matters: Nationwide, new cases have plateaued over the past week. To get through this crisis and safely continue getting back out into the world, we need them to go down — a lot.

Between the lines: Improved testing can cause the number of confirmed cases in a particular state to rise, even if that state's outbreak isn't getting that much worse.

  • At least in Texas, however, the spike in recorded cases does seem to reflect an actual increase in new infections — not just better testing.
  • Testing in Texas increased by 36% over the past week, while the number of confirmed infections rose by 51%.
  • Texas also saw an increase in the percentage of all coronavirus tests that came back positive. In a state where testing is improving and the underlying outbreak isn't getting worse, you'd expect the share of positive tests to go down.

The big picture: Axios is tracking each state's caseload week by week, using a seven-day average. The disparities between states, and these sudden spikes in places that had been making progress, underline just how tentative the U.S.' progress against the virus has been.

Go deeper

Aug 13, 2020 - Health

We're doing a lot less coronavirus testing

Data: The COVID Tracking Project; Chart: Andrew Witherspoon/Axios

The U.S. is cutting back on coronavirus testing. Nationally, the number of tests performed each day is about 17% lower than it was at the end of July, and testing is also declining in hard-hit states.

Why it matters: This big reduction in testing has helped clear away delays that undermined the response to the pandemic. But doing fewer tests can also undermine the response to the pandemic.

Updated 13 hours ago - Health

U.S. coronavirus updates

Data: The COVID Tracking Project; Note: Does not include probable deaths from New York City; Map: Andrew Witherspoon/Axios

Two therapies are known to help treat patients who have contracted the coronavirus, and more may be announced by late September, NIAID director Anthony Fauci tells Axios.

Why it matters: Antibody drugs and various medicine cocktails against the virus are progressing and could provide some relief before vaccines become widely available.

Updated 13 hours ago - Health

World coronavirus updates

Data: The Center for Systems Science and Engineering at Johns Hopkins; Map: Axios Visuals

New Zealand confirmed Thursday there are 13 local cases linked to the four who tested positive for COVID-19, ending 102 days of no community spread. Auckland locked down Wednesday for 72 hours and the rest of NZ is under lesser restrictions.

By the numbers: Over 751,000 people have died of the novel coronavirus globally and another 20.7 million have tested positive, per Johns Hopkins. More than 12.8 million have recovered from the virus.