COVID-19 Melbourne company developing “breath test”

Testing is an important part of Australia Coronavirus As a surveillance strategy, many find it unpleasant to push up the nostrils with a cotton swab.

Today, Melbourne company GrayScan is developing a much less invasive test that returns results in just three minutes.

GrayScan CEO Samantha Ollerton likens this to a roadside breath test.

“This works by asking someone to breathe into the device that collects the samples. This takes about a minute,” Ollerton told 9news.com.au.

“The sample is placed in a detector device that illuminates a red or green screen, depending on the presence of the virus.

“By doing unobtrusive testing, you can actually have a very comfortable experience.”

Current PCR swabs detect “any” level of virus in the body and can cause false positives if someone “shedding” at the end of the infection period.

However, the GrayScan test can tell you how infected someone is.

Ollerton said measuring “infectivity” is important in understanding exactly who is at risk of transmitting the virus.

“We are looking at the virus’s external proteins and nuclear material,” she said.

“The combination means that you can distinguish between a fragment of a virus … a living virus … or a dead virus.”

This test helps in the rapid screening of people on the move, such as at airports and interstate road boundaries.

“We really can’t afford to wait 24 hours [for test results]”Mr. Ollerton said.

“If we really want people to do their business … Open the border for overseas travel We need to have something fast, accurate and reliable.”

GrayScan’s breath test technology is still in development, but with financial support it is possible that production will begin shortly.

Another homemade COVID screening mode is also promising.

The University of Adelaide and the Australian Border Force are training dogs to sniff out COVID-positive people.

Dr. Anne-Lise Chaber says the university’s veterinary team has already trained 14 dogs with ABF to distinguish between sweat samples from those with and without COVID.

“Dog is very fast and you don’t have to sweat a lot to tell you if someone is positive or negative,” Dr. Chaber told 9news.com.au.

“For example, someone who arrives at the airport may say,’Put this swab under your armpit for a minute’ … then give this swab to your dog.

“If a dog sits in front of a cotton swab, it means that the person is positive.

“So it’s a very quick and reliable way to screen people.”

Dr. Chaber said detection dogs can be used to screen large groups of people.

“It could be any social gathering, whether it’s an airport, people watching a tennis match, or deploying a dog to a school or college.”

Currently, 14 COVID sniffing hounds have been sent to a private airport to see if they can track traces of the virus.

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