Quick test diagnoses bacterial or viral infection

Jul 20, 2011

Researchers at Ben-Gurion University of the Negev (BGU) have developed a new test that quickly and accurately distinguishes between bacterial and viral infections in as little as five hours.

Treating viral infections with antibiotics is ineffective and contributes to the development of , allergic reactions, toxicity and greater healthcare costs. Currently tests take 24-48 hours and aren't always accurate enough for a clear-cut diagnosis. Doctors often prescribe antibiotics to provide patient relief before the test comes back, without waiting for the results.

According to a study published in the Journal of Analytical Chemistry, the BGU group has shown it is possible to distinguish a patient's infection as either viral or bacterial by adding luminol to a blood sample and measuring the glow. Luminol is a luminescent used in to locate traces of blood.

BGU's study clearly indicated that that protect the body (phagocytes) react differently to viral and bacterial infections and that the glow or "chemiluminescence" (CL) can detect those distinct reactions.

According to the study, "The method is timesaving, easy to perform and can be commercially available, thus, having predictive diagnostic value and could be implemented in various medical institutions."

In the study, 69 patients admitted to Soroka University Medical Center in Beer-Sheva with various types of infections. Rather than looking at the infection, they looked at the immune system's response to the infection.

A multi-disciplinary team, headed by Prof. Robert Marks, of the Department of Biotechnology Engineering and the National Institute for Biotechnology in the Negev (NIBN) made the discovery. Team member and doctoral student Daria Prilutsky undertook the project as part of her Interdisciplinary Technologies Fellowship from the Planning and Budgeting Committee of the Council for Higher Education.

"This is a terrific example of the multi-disciplinary approach at BGU that results in innovative research and yields results that can have a worldwide impact," explains Doron Krakow, executive vice president of American Associates, Ben Gurion University of the Negev. "A test of this type has significant implications for cutting healthcare costs, and providing more accurate treatment."

Explore further: Researchers identify less-invasive method for kidney diagnostics

Related Stories

Bacteria to blame in asthma attacks in children

Oct 07, 2010

Doctors have long known that viral infections can bring about asthma attacks and the shortness of breath, coughing, and wheezing associated with them. But while viral infections cannot be treated, scientists at the Danish ...

Blood signatures to diagnose infection

Sep 07, 2010

Coughing and wheezing patients could someday benefit from quicker, more accurate diagnosis and treatment for respiratory infections such as flu, through a simple blood test, according to scientists.

Recommended for you

'Green chemistry' to quantify the components of cosmetics

21 hours ago

Right now, there are 10,000 components that can be used to make cosmetics. These components have to be monitored to guarantee consumer safety. The UPV/EHU researcher Josu López has developed three 'green' ...

Research center develops single-cell analyzer

May 29, 2015

Researchers at Missouri University of Science and Technology have developed a probe capable of detecting signs of disease or environmental change inside a single human cell.

Devices designed to identify pathogens in food

May 27, 2015

Researchers at the National Polytechnic Institute (IPN) in Mexico have developed a technology capable of identifying pathogens in food and beverages. This technique could work in the restaurant industry as ...

Biosensor may improve clinical diagnosis of influenza A

May 27, 2015

Sensors based on special sound waves known as surface acoustic waves (SAWs) are capable of detecting tiny amounts of antigens of Influenza A viruses. Developed by A*STAR researchers, the biosensors have the ...

New chip makes testing for antibiotic-resistant bacteria faster, easier

May 26, 2015

We live in fear of 'superbugs': infectious bacteria that don't respond to treatment by antibiotics, and can turn a routine hospital stay into a nightmare. A 2015 Health Canada report estimates that superbugs have already cost Canadians $1 billion, and are a "serious and growing issue." Each year two million people in the U.S. contract antibiotic-re ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.