'Fill the gap': Sask. student creates tool to track rapid test results, account for unreported COVID-19 cases
![COVID-19 Tracker Noah Little created the COVID-19 Tracker website as a way to fill the gap in current testing capabilities. (Courtesy: Noah Little/covidtracker.ca)](/content/dam/ctvnews/en/images/2022/1/15/covid-19-tracker-1-5741759-1642290043536.jpg)
Saskatchewan’s recorded COVID-19 cases only reflect the positive results confirmed through a PCR test. However, one epidemiologist says this practice leaves too many cases unreported.
The province now recommends people who are asymptomatic or those with mild symptoms opt for a rapid antigen test rather than a PCR test, in an effort to preserve testing capacity.
PCR tests are still recommended for those who are at greater risk of infection or experiencing severe symptoms.
Epidemiologist Dr. Nazeem Muhajarine says the province is creating a “big gap” in its data by not keeping a formal record of rapid antigen test results. He adds that gap is “irretrievable” once the time has passed, as it is impossible to backdate all those cases.
“Without incidents and prevalence that are accurate, we know nothing about disease and the spread of a disease,” Muhajarine said.
Muhajarine says case numbers are a “fundamental” indicator for epidemiology, helping understand the scale of the spread. They can also trigger further investigation into new variants and help people better understand the “societal-wide burden” of the disease.
In certain provinces like Ontario, Muhajarine estimates there are about two or three unreported cases of COVID-19 for every one positive PCR test result.
However, he says it is unclear exactly how many cases in Saskatchewan are unreported.
“We have lots of unknowns with rapid antigen tests, which is why we have little to no idea how much of an undercounting is going on at this point in time,” Muhajarine said.
This is where Noah Little comes in.
The University of Saskatchewan student created an online COVID-19 tracker at the start of the pandemic. It tracks case numbers, vaccinations and hospitalizations across Canada based on regions.
Since Little teamed up with Muhajarine, it now tracks self-reported rapid antigen test results.
“The whole idea of this is to fill the gap in official reporting,” Little said.
“It’s not to replace the official case counts, but it’s to really supplement that and maybe try to catch some of these cases that we’re missing with such limited testing.”
Since the launch of the new tracker, Little says more than 6,000 people have reported their rapid antigen test results, with about 2,000 coming from Saskatchewan.
The feature tracks positive, negative and invalid test results. All people have to do is enter their result, their age, the first three characters of their postal code and the date of the test.
“We collect very limited data just to be protected on that privacy front,” Little said.
Little says the biggest barrier is access to both the internet and rapid tests. However, if people get passed that, it will only take about 20 seconds to complete the entry.
“At the end of the day it’s more and more valuable the more and more people actually use it,” Little said.
New Brunswick recently started reporting rapid antigen test results on its government dashboard. Saskatchewan’s chief medical health office says that is something the government could look at doing in the future.
According to Dr. Saqib Shahah, the province’s cases that are confirmed through PCR testing represent about 20 to 30 per cent of all cases.
Shahab says at any given time two to three per cent of Saskatchewan’s population could have COVID-19, which is roughly 20,000 to 30,000 people.
As a result, Shahab says we can no longer rely on testing numbers and daily new cases as indicators.
“This is a very different phase of the pandemic. We will have to rely more on the lagging indicator of hospitalizations,” he said.
No matter how many extra resources are deployed to PCR testing sites, Shahab says it will not be able to keep up with demand.
He encourages those who test positive on a rapid antigen test to report it online.
“I think that could be an additional tool. Obviously it’s not going to be complete but it does give you a sense of what’s happening,” he said.
Muhajarine would like to see the government use an official tracking system for rapid tests.
Rapid antigen tests play an important role screening and self-monitoring, but Muhajarine says “we are asking it to do more that what we had built it to do.”
Ideally, he says rapid tests will only temporarily be used for diagnosis, as the province tries to limit the strain on testing capacity due to Omicron.
Once this wave passes, he would like to see PCR testing available for everyone.
CTVNews.ca Top Stories
![](https://www.ctvnews.ca/polopoly_fs/1.6863592.1714161127!/httpImage/image.jpg_gen/derivatives/landscape_800/image.jpg)
B.C. seeks ban on public drug use, dialing back decriminalization
The B.C. NDP has asked the federal government to recriminalize public drug use, marking a major shift in the province's approach to addressing the deadly overdose crisis.
More than 115 cases of eye damage reported in Ontario after solar eclipse
More than 115 people who viewed the solar eclipse in Ontario earlier this month experienced eye damage after the event, according to eye doctors in the province.
Orca calf that was trapped in B.C. lagoon for weeks swims free
An orca whale calf that has been stranded in a B.C. lagoon for weeks after her pregnant mother died swam out on her own early Friday morning.
Last letters of pioneering climber who died on Everest reveal dark side of mountaineering
George Mallory is renowned for being one of the first British mountaineers to attempt to scale the dizzying heights of Mount Everest during the 1920s. Nearly a century later, newly digitized letters shed light on Mallory’s hopes and fears about ascending Everest.
Sophie Gregoire Trudeau on navigating post-political life, co-parenting and freedom
Sophie Gregoire Trudeau says there is 'still so much love' between her and Prime Minister Justin Trudeau, as they navigate their post-separation relationship co-parenting their three children.
'I was scared': Ontario man's car repossessed after missing two repair loan payments
An Ontario man who took out a loan to pay for auto repairs said his car was repossessed after he missed two payments.
Trump's lawyers try to discredit testimony of prosecution's first witness in hush money trial
Donald Trump's defence team attacked the credibility Friday of the prosecution's first witness in his hush money case, seeking to discredit testimony detailing a scheme between Trump and a tabloid to bury negative stories to protect the Republican's 2016 presidential campaign.
U.S. flight attendant indicted in attempt to record teen girl in airplane bathroom
An American Airlines flight attendant was indicted Thursday after authorities said he tried to secretly record video of a 14-year-old girl using an airplane bathroom last September.
Powerful tornado tears across Nebraska, weather service warns of 'catastrophic' damage
Devastating tornadoes tore across parts of eastern Nebraska and northeast Texas Friday as a multi-day severe thunderstorm event ramped up in the central United States.