Photo: Andrew Milligan/PA Images via Getty Images

139 clients were exposed to two symptomatic hair stylists with COVID-19, but face coverings on both the stylists and customers resulted in no reported secondary cases, a study released Tuesday from the Centers for Disease Control and Prevention shows.

Why it matters: The masks prevented what could have been a major outbreak in Springfield, Missouri, in an industry that's mostly been able to reopen across the U.S.

The big picture: The study is part of several that have been recently released and scientific advice that's emerged illustrating that a population of people can help prevent spread of the coronavirus by covering their nose and mouth.

By the numbers: The two stylists came in close contact with 139 clients who wanted haircuts, facial hair trimmings or perms.

  • These appointments led the clients within inches of the symptomatic stylists for 15- to 45-minute periods.
  • Contact tracers followed up with those 139 customers and no one reported feeling sick during the 14 days that followed their salon appointments.
  • Researchers also offered the clients free diagnostic tests; 67 accepted, and all turned up negative.

Go deeper: CDC director says U.S. could get coronavirus "under control" in 4–8 weeks if all wear masks

Go deeper

Jul 14, 2020 - Health

CDC director: U.S. could get coronavirus "under control" in 4–8 weeks if all wear masks

If everyone in the U.S. wore a mask, the coronavirus pandemic could be "under control" within four to eight weeks, Centers for the Disease Control and Prevention director Robert Redfield said in a discussion led by medical journal JAMA on Tuesday.

The big picture: JAMA published an editorial on Tuesday co-authored by Redfield that points to research papers showing that the positivity rate of confirmed cases can decrease in populations with masking. "The time is now. We really need to embrace masking," he said.

14 mins ago - Health

Axios-Ipsos poll: Fear of voting

Data: Axios/Ipsos poll; Note: ±3.0% margin of error for the total sample; Chart: Andrew Witherspoon/Axios

Democrats are twice as likely as Republicans to worry about in-person voting — with nearly two in three seeing it as a large or moderate risk to their health — according to this week's installment of the Axios-Ipsos Coronavirus Index.

Why it matters: This could pose a significant disadvantage for Joe Biden and other Democratic candidates in November if the pattern holds — especially in states where high infection rates persist, or where there are significant hurdles to mail-in, absentee or early voting.

Trump: Coronavirus is "under control"

President Trump said in an interview with “Axios on HBO” that he thinks the coronavirus is as well-controlled in the U.S. as it can be, despite dramatic surges in new infections over the course of the summer and more than 150,000 American deaths.

  • “They are dying, that's true. And you have — it is what it is. But that doesn't mean we aren't doing everything we can. It's under control as much as you can control it. This is a horrible plague,” he told Axios' Jonathan Swan.