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How does Canada's coronavirus tracing app work? – Global News

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Ottawa’s recently released coronavirus tracing app is not without flaws but is a safe tool for those with privacy concerns, according to a University of Waterloo professor who specializes in artificial intelligence and technology.

In a release, Waterloo professor Mark Crowley says the COVID Alert app basically functions using Bluetooth connections and random codes that are generated and stored in your phone.

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Bluetooth is a strong tool because if a person is within Bluetooth range of someone else, they are also susceptible to catching the virus from that person (around two to three metres).

If the app decides your phone is close enough to another person’s phone, they will exchange random codes that will be stored for two weeks. The codes are only exchanged between the two cellphones, according to Crowley.

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If a person were to test positive for the coronavirus, they would receive a random one-time code to punch into their app. Crowley says the code has no identifying information.

After you enter the code and give the app permission, the list of random codes it sent out over the previous two weeks will then be shared with a central server.

The Waterloo prof says this is when other people will be alerted that they may have been infected with COVID-19.

Crowley says he understands why people would be concerned about security and data privacy when adding the COVID-19 app to their phones.

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“I am using the app, and my family is using the app,” he said. “I do not have concerns about its privacy controls. However, people have raised many legitimate concerns about these kinds of apps in other countries and even the rollout of this particular one in Canada.”

He says the app attempts to share as little information as possible while still allowing for contact tracing.

“Any app using this layer cannot access location or identity from the phone,” he said. “So, the federal or provincial government cannot track your location or identity using this app.”

One potential downside that Crowley noted was the fact the app will not work with older phones.

“The app depends on a software technology that is only available on more recent phones (Android: 6.0+, iOS:13.5+),” he explained. “This means many Canadians with older or un-upgraded phones, estimated at around 11 per cent of the mobile phones in the country, will not be capable of running the app.”






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He says it is important for people to download the app as it is a tool to minimize the spread of the virus.

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“We all need to work together as a society to get through living with this disease until reliable treatments and prevention methods are available,” Crowley said.

“While treatment is improving every day and vaccine trials are racing ahead, it may be years before we have a real grip on how to minimize death and suffering from COVID-19.”

© 2020 Global News, a division of Corus Entertainment Inc.

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Teen smoking and other tobacco use drop to lowest level in 25 years, CDC reports

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NEW YORK (AP) — Teen smoking hit an all-time low in the U.S. this year, part of a big drop in the youth use of tobacco overall, the government reported Thursday.

There was a 20% drop in the estimated number of middle and high school students who recently used at least one tobacco product, including cigarettes, electronic cigarettes, nicotine pouches and hookahs. The number went from 2.8 million last year to 2.25 million this year — the lowest since the Centers for Disease Control and Prevention’s key survey began in 1999.

“Reaching a 25-year low for youth tobacco product use is an extraordinary milestone for public health,” said Deirdre Lawrence Kittner, director of CDC’s Office on Smoking and Health, in a statement. However, “our mission is far from complete.”

A previously reported drop in vaping largely explains the overall decline in tobacco use from 10% to about 8% of students, health officials said.

The youth e-cigarette rate fell to under 6% this year, down from 7.7% last year — the lowest at any point in the last decade. E-cigarettes are the most commonly used tobacco products among teens, followed by nicotine pouches.

Use of other products has been dropping, too.

Twenty-five years ago, nearly 30% of high school students smoked. This year, it was just 1.7%, down from the 1.9%. That one-year decline is so small it is not considered statistically significant, but marks the lowest since the survey began 25 years ago. The middle school rate also is at its lowest mark.

Recent use of hookahs also dropped, from 1.1% to 0.7%.

The results come from an annual CDC survey, which included nearly 30,000 middle and high school students at 283 schools. The response rate this year was about 33%.

Officials attribute the declines to a number of measures, ranging from price increases and public health education campaigns to age restrictions and more aggressive enforcement against retailers and manufacturers selling products to kids.

Among high school students, use of any tobacco product dropped to 10%, from nearly 13% and e-cigarette use dipped under 8%, from 10%. But there was no change reported for middle school students, who less commonly vape or smoke or use other products,

Current use of tobacco fell among girls and Hispanic students, but rose among American Indian or Alaska Native students. And current use of nicotine pouches increased among white kids.

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The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Science and Educational Media Group. The AP is solely responsible for all content.

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Whooping cough is at a decade-high level in US

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MILWAUKEE (AP) — Whooping cough is at its highest level in a decade for this time of year, U.S. health officials reported Thursday.

There have been 18,506 cases of whooping cough reported so far, the Centers for Disease Control and Prevention said. That’s the most at this point in the year since 2014, when cases topped 21,800.

The increase is not unexpected — whooping cough peaks every three to five years, health experts said. And the numbers indicate a return to levels before the coronavirus pandemic, when whooping cough and other contagious illnesses plummeted.

Still, the tally has some state health officials concerned, including those in Wisconsin, where there have been about 1,000 cases so far this year, compared to a total of 51 last year.

Nationwide, CDC has reported that kindergarten vaccination rates dipped last year and vaccine exemptions are at an all-time high. Thursday, it released state figures, showing that about 86% of kindergartners in Wisconsin got the whooping cough vaccine, compared to more than 92% nationally.

Whooping cough, also called pertussis, usually starts out like a cold, with a runny nose and other common symptoms, before turning into a prolonged cough. It is treated with antibiotics. Whooping cough used to be very common until a vaccine was introduced in the 1950s, which is now part of routine childhood vaccinations. It is in a shot along with tetanus and diphtheria vaccines. The combo shot is recommended for adults every 10 years.

“They used to call it the 100-day cough because it literally lasts for 100 days,” said Joyce Knestrick, a family nurse practitioner in Wheeling, West Virginia.

Whooping cough is usually seen mostly in infants and young children, who can develop serious complications. That’s why the vaccine is recommended during pregnancy, to pass along protection to the newborn, and for those who spend a lot of time with infants.

But public health workers say outbreaks this year are hitting older kids and teens. In Pennsylvania, most outbreaks have been in middle school, high school and college settings, an official said. Nearly all the cases in Douglas County, Nebraska, are schoolkids and teens, said Justin Frederick, deputy director of the health department.

That includes his own teenage daughter.

“It’s a horrible disease. She still wakes up — after being treated with her antibiotics — in a panic because she’s coughing so much she can’t breathe,” he said.

It’s important to get tested and treated with antibiotics early, said Dr. Kris Bryant, who specializes in pediatric infectious diseases at Norton Children’s in Louisville, Kentucky. People exposed to the bacteria can also take antibiotics to stop the spread.

“Pertussis is worth preventing,” Bryant said. “The good news is that we have safe and effective vaccines.”

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AP data journalist Kasturi Pananjady contributed to this report.

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The Associated Press Health and Science Department receives support from the Robert Wood Johnson Foundation. The AP is solely responsible for all content.

The Canadian Press. All rights reserved.



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Alabama man arrested in SEC social media account hack that led the price of bitcoin to spike

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WASHINGTON (AP) — An Alabama man was arrested Thursday for his alleged role in the January hack of a U.S. Securities and Exchange Commission social media account that led the price of bitcoin to spike, the Justice Department said.

Eric Council Jr., 25, of Athens, is accused of helping to break into the SEC’s account on X, formerly known as Twitter, allowing the hackers to prematurely announce the approval of long-awaited bitcoin exchange-traded funds.

The price of bitcoin briefly spiked more than $1,000 after the post claimed “The SEC grants approval for #Bitcoin ETFs for listing on all registered national securities exchanges.”

But soon after the initial post appeared, SEC Chairman Gary Gensler said on his personal account that the SEC’s account was compromised. “The SEC has not approved the listing and trading of spot bitcoin exchange-traded products,” Gensler wrote, calling the post unauthorized without providing further explanation.

Authorities say Council carried out what’s known as a “SIM swap,” using a fake ID to impersonate someone with access to the SEC’s X account and convince a cellphone store to give him a SIM card linked to the person’s phone. Council was able to take over the person’s cellphone number and get access codes to the SEC’s X account, which he shared with others who broke into the account and sent the post, the Justice Department says.

Prosecutors say after Council returned the iPhone he used for the SIM swap, his online searches included: “What are the signs that you are under investigation by law enforcement or the FBI even if you have not been contacted by them.”

An email seeking comment was sent Thursday to an attorney for Council, who is charged in Washington’s federal court with conspiracy to commit aggravated identity theft and access device fraud.

The price of bitcoin swung from about $46,730 to just below $48,000 after the unauthorized post hit on Jan. 9 and then dropped to around $45,200 after the SEC’s denial. The SEC officially approved the first exchange-traded funds that hold bitcoin the following day.

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