Coronavirus saliva tests could be as accurate or better than nasal swabs, Yale researchers say


A doctor wearing personal protective equipment (PPE) places a saliva swab into a test tube for analysis during coronavirus symptom tests in the coronavirus outpatient clinic at the Paracelsus Clinic in Zwickau, Germany, on Thursday, April 2, 2020.

Krisztian Bocsi | Bloomberg via Getty Images

Saliva tests for Covid-19 could be at least as accurate — possibly more so — than the commonly used nasal swab tests in screening for the coronavirus, new research from Yale University shows.

The researchers said their findings suggest that saliva samples could be used for at-home coronavirus tests on a large scale nationally. 


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3D printing companies answer the call for swabs for Covid-19 tests


3D printed swabs

Source: University of South Florida

Each day, New Jersey does between 7,000 and 9,000 Covid-19 tests at the state’s testing sites. Gov. Phil Murphy says that number must at least double before the state loosens lockdowns.

Some health experts say the U.S. may have to do millions of tests — as many as 20 million to 30 million — per day.

That will take many more nasal swabs — a simple, but critical tool that’s in short supply.

A group of hospitals and companies is turning to 3D printers to ramp up production. Researchers at University of

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