People who suspect they may have COVID-19 could soon find out with a simple breath test that delivers results in three minutes.
On Thursday, the U.S. Food and Drug Administration granted an emergency use authorization for a device called the InspectIR Covid-19 Breathalyzer. The test, which must be administered by a trained operator, demonstrates a high degree of accuracy while taking up no more space than a piece of carry-on luggage.
InspectIR can run 160 samples per day and may be used at mobile testing sites, hospitals and doctors' offices. The company can produce about 100 of the machines a week, The New York Times reported.
The test uses gas chromatography gas mass-spectrometry, a technique that separates and identifies chemical mixtures, to spot the presence of five compounds associated with the coronavirus.
Its accuracy was confirmed in a large study of just over 2,400 people, including those with and without symptoms. In the end, the test was shown to have 91.2% sensitivity (the percent of positive samples the test correctly identified) and 99.3% specificity (the percent of negative samples the test correctly identified). The test performed just as well in a follow-up study focused on the Omicron variant.
The test's approval arrives as the Omicron subvariant BA.2 takes over the country, now accounting for almost 86% of all COVID cases, according to data from the U.S. Centers of Disease Control and Prevention. Several northeastern cities have seen cases climb recently as the subvariant surges, and Philadelphia even brought back its indoor mask mandate this week to try to stem the spread of BA.2.
A positive test should be confirmed through another testing method, such as a PCR lab test, the FDA stressed.
The agency warned that negative tests "should be considered in the context of a patient's recent exposures, history and the presence of clinical signs and symptoms consistent with COVID-19" and "should not be used as the sole basis for treatment or patient management decisions, including infection control decisions."
News
New book from NanoappsMedical Inc – Molecular Manufacturing: The Future of Nanomedicine
This book explores the revolutionary potential of atomically precise manufacturing technologies to transform global healthcare, as well as practically every other sector across society. This forward-thinking volume examines how envisaged Factory@Home systems might enable the cost-effective [...]
A Virus Designed in the Lab Could Help Defeat Antibiotic Resistance
Scientists can now design bacteria-killing viruses from DNA, opening a faster path to fighting superbugs. Bacteriophages have been used as treatments for bacterial infections for more than a century. Interest in these viruses is rising [...]
Sleep Deprivation Triggers a Strange Brain Cleanup
When you don’t sleep enough, your brain may clean itself at the exact moment you need it to think. Most people recognize the sensation. After a night of inadequate sleep, staying focused becomes harder [...]
Lab-grown corticospinal neurons offer new models for ALS and spinal injuries
Researchers have developed a way to grow a highly specialized subset of brain nerve cells that are involved in motor neuron disease and damaged in spinal injuries. Their study, published today in eLife as the final [...]
Urgent warning over deadly ‘brain swelling’ virus amid fears it could spread globally
Airports across Asia have been put on high alert after India confirmed two cases of the deadly Nipah virus in the state of West Bengal over the past month. Thailand, Nepal and Vietnam are among the [...]
This Vaccine Stops Bird Flu Before It Reaches the Lungs
A new nasal spray vaccine could stop bird flu at the door — blocking infection, reducing spread, and helping head off the next pandemic. Since first appearing in the United States in 2014, H5N1 [...]
These two viruses may become the next public health threats, scientists say
Two emerging pathogens with animal origins—influenza D virus and canine coronavirus—have so far been quietly flying under the radar, but researchers warn conditions are ripe for the viruses to spread more widely among humans. [...]
COVID-19 viral fragments shown to target and kill specific immune cells
COVID-19 viral fragments shown to target and kill specific immune cells in UCLA-led study Clues about extreme cases and omicron’s effects come from a cross-disciplinary international research team New research shows that after the [...]
Smaller Than a Grain of Salt: Engineers Create the World’s Tiniest Wireless Brain Implant
A salt-grain-sized neural implant can record and transmit brain activity wirelessly for extended periods. Researchers at Cornell University, working with collaborators, have created an extremely small neural implant that can sit on a grain of [...]
Scientists Develop a New Way To See Inside the Human Body Using 3D Color Imaging
A newly developed imaging method blends ultrasound and photoacoustics to capture both tissue structure and blood-vessel function in 3D. By blending two powerful imaging methods, researchers from Caltech and USC have developed a new way to [...]
Brain waves could help paralyzed patients move again
People with spinal cord injuries often lose the ability to move their arms or legs. In many cases, the nerves in the limbs remain healthy, and the brain continues to function normally. The loss of [...]
Scientists Discover a New “Cleanup Hub” Inside the Human Brain
A newly identified lymphatic drainage pathway along the middle meningeal artery reveals how the human brain clears waste. How does the brain clear away waste? This task is handled by the brain’s lymphatic drainage [...]
New Drug Slashes Dangerous Blood Fats by Nearly 40% in First Human Trial
Scientists have found a way to fine-tune a central fat-control pathway in the liver, reducing harmful blood triglycerides while preserving beneficial cholesterol functions. When we eat, the body turns surplus calories into molecules called [...]
A Simple Brain Scan May Help Restore Movement After Paralysis
A brain cap and smart algorithms may one day help paralyzed patients turn thought into movement—no surgery required. People with spinal cord injuries often experience partial or complete loss of movement in their arms [...]
Plant Discovery Could Transform How Medicines Are Made
Scientists have uncovered an unexpected way plants make powerful chemicals, revealing hidden biological connections that could transform how medicines are discovered and produced. Plants produce protective chemicals called alkaloids as part of their natural [...]
Scientists Develop IV Therapy That Repairs the Brain After Stroke
New nanomaterial passes the blood-brain barrier to reduce damaging inflammation after the most common form of stroke. When someone experiences a stroke, doctors must quickly restore blood flow to the brain to prevent death. [...]
