Information from covid19stats.alberta.ca
On Monday, April 6 the province made some interesting changes and additions of the provincial COVID-19 stats website.
Red Deer is no longer separated into 3 quadrants. But the report now indicates how many cases are active and how many are recovered.
Across Central Alberta there are 66 cases.
- Red Deer City – 25 cases – 13 active – 12 recovered
- Red Deer County – 13 cases – 11 active – 2 recovered
- Wetaskiwin City – 7 cases – 3 active – 4 recovered
- Mountain View County – 5 cases – 4 active – 1 recovered
- Lacombe County – 4 cases – 1 active – 3 recovered
- Lacombe City – 2 cases – 0 active – 2 recovered
- Camrose City – 2 cases – 0 active – 1 recovered – 1 death
- Beaver County – 2 cases – 2 active
- Camrose County – 1 case – 1 recovered
- Windburn County – 1 case – 1 recovered
- Vermilion River County – 1 case – 1 recovered
- Ponoka County – 1 case – 1 active
- Stettler County – 1 case – 1 active
- Kneehill County – 1 case – 1 active
- Clearwater County – 1 case – 1 active
In this graph you can see that Central and Southern Alberta zones have been very fortunate in the amount of cases per 100,000
This graph makes it look like all the regions in Alberta “might” be flattening the curve. Experts say it takes up to 5 days in a row to indicate this trend. It currently looks promising.
This graph compares the age categories in both actual number of cases, and as a rate per 100,000 people in each category.
Here are the total numbers for the province. In recent days the percentage of cases in Central Alberta has dropped from 8 to 5.
From the Province of Alberta
- A total of 953 cases are laboratory confirmed and 395 are probable cases (symptomatic close contacts of laboratory confirmed cases). Laboratory positivity rates remain consistent at two per cent.
- Cases have been identified in all zones across the province:
- 817 cases in the Calgary zone
- 351 cases in the Edmonton zone
- 89 cases in the North zone
- 66 cases in the Central zone
- 22 cases in the South zone
- Three cases in zones yet to be confirmed
- Of these cases, there are currently 40 people in hospital, 16 of whom have been admitted to intensive care units (ICU).
- Of the 1,348 total cases, 204 are suspected of being community acquired.
- There are now a total of 361 confirmed recovered cases.
- One additional death has been reported in the Calgary zone. There have been 15 deaths in the Calgary zone, four in the Edmonton zone, four in the North zone, and one in the Central zone.
- Strong outbreak measures have been put in place at continuing care facilities. To date, 112 cases have been confirmed at these facilities.
- There have been 64,183 people tested for COVID-19 and a total of 65,914 tests performed by the lab. There have been 821 tests completed in the last 24 hours.
- Aggregate data, showing cases by age range and zone, as well as by local geographic areas, is available online at alberta.ca/covid19statistics.
- All Albertans need to work together to help prevent the spread and overcome COVID-19.
- Restrictions remain in place for all gatherings and close-contact businesses, dine-in restaurants and non-essential retail services. A full list of restrictions is available online.
- Alberta Health Services (AHS) has announced further restrictions for visitors to Alberta hospitals.
- AHS has expanded its testing criteria for COVID-19 to include symptomatic individuals in the following roles or age groups:
- Group home and shelter workers
- First responders, including firefighters
- Those involved in COVID-19 enforcement, including police, peace officers, bylaw officers, environmental health officers, and Fish and Wildlife officers
- Correctional facility staff, working in either a provincial or federal facility
- Starting April 7, individuals over the age of 65
- Anyone among these groups is urged to use the AHS online assessment tool for health-care workers, enforcement and first responders.
- Medical masks and respirators must be kept for health-care workers and others providing direct care to COVID-19 patients. Those who choose to wear a non-medical face mask should:
- continue to follow all other public health guidance (staying two metres away from others, wash hands regularly, stay home when sick)
- wash their hands immediately before putting it on and immediately after taking it off (in addition to practising good hand hygiene while wearing it)
- ensure it fits well (non-gaping)
- not share it with others
- avoid touching the mask while wearing it
- change masks as soon they get damp or soiled
- As Albertans look forward to the upcoming holiday weekend, they are being reminded to:
- avoid gatherings outside of their immediate household
- find ways to connect while being physically separated
- worship in a way that does not put people at risk, including participating in virtual or live-streamed religious celebrations
Alberta paleontologists find dramatic change in bite force as tyrannosaurs matured
Tyrannosaurs are well known as having been ferocious predators at the top of the food chain millions of years ago, but a study led by an Alberta-based researcher shows the reptiles didn’t start out life that way.
François Therrien, curator of dinosaur paleoecology at the Royal Tyrrell Museum in Drumheller, Alta., said the study focused on tyrannosaur teeth and their dramatic change as they matured.
He collaborated with Darla Zelenitsky and Jared Voris of the University of Calgary, as well as Kohei Tanaka of the University of Tsukuba in Japan.
For the study, published this week in the Canadian Journal of Earth Sciences, the researchers examined the lower jaws from the Albertosaurus and Gorgosaurus, types of tyrannosaurs commonly found in Canada that predated the T. rex by millions of years.
“Our fossil records for those two species of tyrannosaurs is excellent,” Therrien said about the collection at the museum.
“We have so many specimens of those … that represent a full growth series from very young individuals that were probably three or four years of age all the way to fully grown adults that were over 20 years of age.”
By examining a wide range of fossils, the researchers were able to see a significant change in tooth size and jaw force once the tyrannosaurs reached about 11 years of age.
Feeding behaviour did not appear to change during the lifespan of the tyrannosaurs, because their jaws were adapted to capturing and seizing prey with their mouths, probably because the forelimbs were too short to grasp food, Therrien said.
“Tyrannosaurs were truly unique when you look at all the theropods,” he said. “They were atypical … because their bite and their skulls were their main weapon for killing prey.”
But what did change, he said, is the size of their teeth and their bite force.
A tyrannosaur at about three years of age was still a deadly predator, but it had smaller blade-like teeth that could only slice through flesh. The bite force, Therrien added, was about 10 per cent that of a fully grown alligator.
That means younger tyrannosaurs ate smaller prey and had to compete with other like-sized predators such as the Velociraptor.
Once tyrannosaurs turned 11, Therrien explained, they went through a growth spurt in which their teeth became larger and wider. By the time the reptiles were fully grown, their bite force was eight times more than that of an alligator.
And that meant their diets also changed.
“These teeth were better adapted for resisting twisting stresses either associated with biting of big prey or even crushing bone.”
Therrien said his study shows that young tyrannosaurs were distinct predators that occupied different ecological niches.
“Young tyrannosaurs were not just scaled-down versions of the mature parents,” he said. “They were creatures that actually had their own lifestyles.”
This report by The Canadian Press was first published June 23, 2021.
Daniela Germano, The Canadian Press
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