Tara Moriarty Profile picture
Feb 12 39 tweets 13 min read
The Feb 12-18 Canadian COVID Forecast and associated data are now live.

SEVERE: NS
VERY HIGH: CAN, BC, NB, ON, SK
HIGH: MB, NL, North, PEI
ELEVATED: AB, QC

About 1 in 47 people in Canada are CURRENTLY infected, with surge expected over next 1-2 weeks. This image shows a series of gauges with the February 12 to
Here's the link where you can download png and jpeg versions of all graphics:
drive.google.com/drive/folders/…
Recommendations this week are still cautious, even for regions where the forecast is currently ELEVATED or HIGH.

Why? Because @INSPQ survey of RAT/PCR+ people for week of Feb 5 found 69% increase compared to week before. It's often the first indicator to go up at start of surges
@INSPQ Data for other indicators that go into our forecast, such as test positivity rates, waste water are roughly 2 weeks behind the forecast date.

We're not seeing forecast scores shoot up yet, although curves are slowing/bending back up for multiple regions.

So, caution advised.
Canadian COVID Forecast Feb 12-18, 2023

CANADA

VERY HIGH

About 1 in every 47 people is infected.

HOW TO HELP:
Mask, get your booster, avoid non-essential indoor public places, social gatherings.

Higher risk: also avoid outdoor social gatherings. This image describes the Canadian COVID Forecast, which is p
Canadian COVID Forecast Feb 12-18, 2023

CANADA

VERY HIGH

About 1 in every 47 people infected

Compared to lowest point of pandemic in Canada:

🟡Waste water, infections, long COVID cases ~6X higher
🟡Hospitalizations ~5X higher
🟡Deaths ~7X higher This image describes the Canadian COVID Forecast for Februar
From @CDCgov :

About 1 in 5 adults have a health condition that might be related to their previous COVID-19 illness.

The best way to protect from long-lasting COVID symptoms is not getting COVID, and/or not getting it again. A blue-bordered image by Covid-19 Resources Can has 3 smalle
Canadian COVID Forecast Feb 12-18, 2023

NEWFOUNDLAND AND LABRADOR

HIGH

About 1 in every 97 people is infected.

HOW TO HELP:
Mask, get your booster, avoid non-essential indoor public places, social gatherings.

Higher risk: also avoid outdoor social gatherings. This image describes the Canadian COVID Forecast for Newfoun
Canadian COVID Forecast Feb 12-18, 2023

NEWFOUNDLAND AND LABRADOR

HIGH

About 1 in every 97 people infected

Compared to lowest point of pandemic in Canada:

🟡Waste water, infections, long COVID cases ~2X higher
🟡Hospitalizations ~9X higher
🟡Deaths ~3X higher This image describes the Canadian COVID Forecast for Februar
Canadian COVID Forecast Feb 12-18, 2023

PRINCE EDWARD ISLAND

HIGH

About 1 in every 67 people is infected.

HOW TO HELP:
Mask, get your booster, avoid non-essential indoor public places, social gatherings.

Higher risk: also avoid outdoor social gatherings. This image describes the Canadian COVID Forecast for Prince
Canadian COVID Forecast Feb 12-18, 2023

PRINCE EDWARD ISLAND

HIGH

About 1 in every 67 people infected

Compared to lowest point of pandemic in Canada:

🟡Waste water, infections, long COVID cases ~7X higher
🟡Hospitalizations: SIMILAR
🟡Deaths ~9X higher This image describes the Canadian COVID Forecast for Februar
Canadian COVID Forecast Feb 12-18, 2023

NOVA SCOTIA

SEVERE

About 1 in every 33 people is infected.

HOW TO HELP:
Mask, get your booster, avoid non-essential indoor public places, social gatherings.

Higher risk: also avoid outdoor social gatherings. This image describes the Canadian COVID Forecast for Nova Sc
Canadian COVID Forecast Feb 12-18, 2023

NOVA SCOTIA

SEVERE

About 1 in every 33 people infected

Compared to lowest point of pandemic in Canada:

🟡Waste water, infections, long COVID cases ~9X higher
🟡Hospitalizations: ~6X higher
🟡Deaths ~16X higher This image describes the Canadian COVID Forecast for Februar
Canadian COVID Forecast Feb 12-18, 2023

NEW BRUNSWICK

VERY HIGH

About 1 in every 75 people is infected.

HOW TO HELP:
Mask, get your booster, avoid non-essential indoor public places, social gatherings.

Higher risk: also avoid outdoor social gatherings. This image describes the Canadian COVID Forecast for New Bru
Canadian COVID Forecast Feb 12-18, 2023

NEW BRUNSWICK

VERY HIGH

About 1 in every 75 people infected

Compared to lowest point of pandemic in Canada:

🟡Waste water, infections, long COVID cases ~6X higher
🟡Hospitalizations: ~2X higher
🟡Deaths ~12X higher This image describes the Canadian COVID Forecast for Februar
Canadian COVID Forecast Feb 12-18, 2023

QUEBEC

ELEVATED

About 1 in every 55 people is infected.

HOW TO HELP:
Mask, get your booster, avoid non-essential indoor public places, social gatherings.

Higher risk: also avoid outdoor social gatherings. This image describes the Canadian COVID Forecast for Quebec,
Bloody Twitter. Keeps prompting me to save or discard tweets when I want to send them. It's possible there may be some service interruptions on this thread, folks.

You'll hear anguished cries from the direction of Ontario.
Canadian COVID Forecast Feb 12-18, 2023

QUEBEC

ELEVATED

About 1 in every 55 people infected

Compared to lowest point of pandemic in Canada:

🟡Waste water, infections, long COVID cases ~5X higher
🟡Hospitalizations: ~4X higher
🟡Deaths ~3X higher This image describes the Canadian COVID Forecast for Februar
For those who often wonder why the COVID Forecast for QC goes up and down faster than for many regions (and doesn't get stuck at the highest points for as long).
Part of it is reporting--QC reporting is faster and more complete than most Canadian regions, and there's not as much of a problem with severe outcomes trickling in for weeks/months after they've happened.
But also, QC and the Prairie provinces too seem to have had a better go of Omicron than provinces that likely had experienced fewer severe outcomes and infections pre-Omicron.
The other thing that's important to know about the Prairie provinces and QC is that reporting of hospitalization and ICU admissions is pretty decent in all of these provinces. We don't see as much of the prolonged, dragged out reporting that we see in Atlantic Canada and Ontario.
BC hospital/ICU admission reporting is pretty decent too, at least compared to ON and Atlantic Canada. BC death reporting has really improved in the last year or so, but it's still a bit protracted, which may contribute to BC COVID forecast scores stalling at high points.
We also know from @COVIDimmunityTF seroprevalence data that as of early Dec, BC, ON and Atlantic provinces still had the lowest % the total population infected at least once.

So it's likely there's a bit more tinder (and more expected severe outcomes) in these provinces.
@COVIDimmunityTF After that tangent, back to the forecasts
@COVIDimmunityTF Aargh. Too much chat. Not enough attention to detail. Just made a mistake in my Ontario tweets.

Starting them over.
Canadian COVID Forecast Feb 12-18, 2023

ONTARIO

VERY HIGH

About 1 in every 34 people is infected.

HOW TO HELP:
Mask, get your booster, avoid non-essential indoor public places, social gatherings.

Higher risk: also avoid outdoor social gatherings. This image describes the Canadian COVID Forecast for Ontario
Canadian COVID Forecast Feb 12-18, 2023

ONTARIO

VERY HIGH

About 1 in every 34 people infected

Compared to lowest point of pandemic in Canada:

🟡Waste water, infections, long COVID cases ~9X higher
🟡Hospitalizations: ~7X higher
🟡Deaths ~5X higher This image describes the Canadian COVID Forecast for Februar
Canadian COVID Forecast Feb 12-18, 2023

MANITOBA

HIGH

About 1 in every 113 people is infected.

HOW TO HELP:
Mask, get your booster, avoid non-essential indoor public places, social gatherings.

Higher risk: also avoid outdoor social gatherings. This image describes the Canadian COVID Forecast for Manitob
Canadian COVID Forecast Feb 12-18, 2023

MANITOBA

HIGH

About 1 in every 113 people infected

Compared to lowest point of pandemic in Canada:

🟡Waste water, infections, long COVID cases ~3X higher
🟡Hospitalizations: ~5X higher
🟡Deaths ~6X higher This image describes the Canadian COVID Forecast for Februar
Canadian COVID Forecast Feb 12-18, 2023

SASKATCHEWAN

VERY HIGH

About 1 in every 98 people is infected.

HOW TO HELP:
Mask, get your booster, avoid non-essential indoor public places, social gatherings.

Higher risk: also avoid outdoor social gatherings. This image describes the Canadian COVID Forecast for Saskatc
Canadian COVID Forecast Feb 12-18, 2023

SASKATCHEWAN

VERY HIGH

About 1 in every 98 people infected

Compared to lowest point of pandemic in Canada:

🟡Waste water, infections, long COVID cases ~4X higher
🟡Hospitalizations: ~14X higher
🟡Deaths ~6X higher This image describes the Canadian COVID Forecast for Februar
Canadian COVID Forecast Feb 12-18, 2023

ALBERTA

ELEVATED

About 1 in every 92 people is infected.

HOW TO HELP:
Mask, get your booster, avoid non-essential indoor public places, social gatherings.

Higher risk: also avoid outdoor social gatherings. This image describes the Canadian COVID Forecast for Alberta
Canadian COVID Forecast Feb 12-18, 2023

ALBERTA

ELEVATED

About 1 in every 92 people infected

Compared to lowest point of pandemic in Canada:

🟡Waste water, infections, long COVID cases ~3X higher
🟡Hospitalizations: ~2X higher
🟡Deaths ~2X higher This image describes the Canadian COVID Forecast for Februar
Canadian COVID Forecast Feb 12-18, 2023

BRITISH COLUMBIA

VERY HIGH

About 1 in every 54 people is infected.

HOW TO HELP:
Mask, get your booster, avoid non-essential indoor public places, social gatherings.

Higher risk: also avoid outdoor social gatherings. This image describes the Canadian COVID Forecast for British
Canadian COVID Forecast Feb 12-18, 2023

BRITISH COLUMBIA

VERY HIGH

About 1 in every 54 people infected

Compared to lowest point of pandemic in Canada:

🟡Waste water, infections, long COVID cases ~4X higher
🟡Hospitalizations: ~7X higher
🟡Deaths ~11X higher This image describes the Canadian COVID Forecast for Februar
Canadian COVID Forecast Feb 12-18, 2023

NUNAVUT, NORTHWEST TERRITORIES, YUKON

HIGH

About 1 in every 75 people is infected.

HOW TO HELP:
Mask, get your booster, avoid non-essential indoor public places, social gatherings.

Higher risk: also avoid outdoor social gatherings. This image describes the Canadian COVID Forecast for the Nor
Canadian COVID Forecast Feb 12-18, 2023

NUNAVUT, NWT, YUKON

HIGH

About 1 in every 75 people infected

Compared to lowest point of pandemic in Canada:

🟡Waste water, infections, long COVID cases ~8X higher
🟡Hospitalizations: ~2X higher
🟡Deaths ~3X higher This image describes the Canadian COVID Forecast for Februar
That's all folks. Gotta go work on a paper, but will check in again later.

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More from @MoriartyLab

Feb 10
Thread: excess mortality and COVID death reporting in Canada during COVID

All Canadian Excess Mortality Tracker data and graphs available here: covid19resources.ca/public/excess-… Image
The graphs I'll show are a bit complicated. But they're simplified versions of what you can find on the tracker, because I've deselected % excess mortality for individual age groups to make it easier to see patterns.
This graph here shows the data for fast-reporting provinces (NL, QC, AB, BC), with a comparison to the values for Canada as a whole (including the slow-reporting provinces). Image
Read 141 tweets
Feb 8
For the last year, I've found that positive test (RAT or PCR) survey data from @INSPQ have provided the fastest early warning indicator of new waves.

QC test positivity in survey ending Feb 5 increased 64% compared to week before.

It had declined from Dec 25 to Feb 5. Image
@INSPQ It's still only at half the infection numbers from the week of Dec 25 (the highest point in the most recent surge in QC), but if we've seen a 64% increase in the most recent week, I'd guess QC will be at the height of the Dec 25 surge by the week after.
Read 15 tweets
Feb 7
@JustinTrudeau it would be great if one of the strings attached to funding is timely, complete reporting of COVID data by provinces to @GovCanHealth .

As of today, 72,176 COVID hospitalizations up to March 31, 2022 have not yet been reported to PHAC.

Yes, 2022. Not a typo.
@JustinTrudeau @GovCanHealth One third of Canada's 215,000 COVID hospitalizations up to March 31, 2022 have not yet been reported to PHAC.

And there is some serious under-reporting of severe COVID outcomes happening in multiple provinces, including Canada's largest province.
@JustinTrudeau @GovCanHealth Plus all-cause mortality reporting so slow that we're only now learning specific causes of death from 2021, including but not limited to COVID.
Read 15 tweets
Feb 5
The Feb 5-11 Canadian COVID Forecast and associated data are now live.

SEVERE: NS
VERY HIGH: CAN, BC, NL, North, ON, SK
HIGH: NB, PEI
ELEVATED: AB, MB, QC

All but SK decreasing (SK increasing)

About 1 in 46 people in Canada are CURRENTLY infected.

covid19resources.ca/covid-hazard-i… This image shows a series of gauges with the February 5 to F
Apologies for missing a week last week--it was my fault, not the team!
For the weekly recommendations we provide, we're still using recommendations for VERY HIGH and SEVERE scores even for regions that have dropped below these thresholds.

Why? Because the projections we do are based on data that is already nearly 2 weeks old d/t reporting delays.
Read 35 tweets
Jan 22
The Jan 22-28 Canadian COVID Forecast and associated data are now live.

SEVERE: CAN, BC, MB, NL, NS, ON
VERY HIGH: AB, NB, North, PEI
HIGH: MB, QC, SK

All but PEI stable or decreasing

About 1 in 32 people in Canada are CURRENTLY infected.

Link: covid19resources.ca/covid-hazard-i This image shows a series of gauges with the January 22-28,
We're seeing a decline in severe outcomes in multiple provinces, with decline in waste water and estimated total infections in many.

It looks like we're coming out of the holiday wave/surge--the duration looks fairly similar to the surge we saw around Thanksgiving.
But....as you can see from this image here, estimated actual infections are continuing to increase for multiple provinces (CAN, BC, NL, NS, ON, North)--not fast (except for North), but steadily.

If/when we see hospitalizations pick up we'll likely be in the XBB.1.5 surge/wave.
Read 80 tweets
Jan 15
The Jan 15-21 Canadian COVID Forecast and associated data are now live.

SEVERE: CAN, BC, MB, NL, NS, ON, QC
VERY HIGH: AB, NB, North, SK
HIGH: PEI

All except PEI, NB, SK stable or increasing

About 1 in 24 people in Canada are CURRENTLY infected.

Link: covid19resources.ca/covid-hazard-i… This image shows a series of gauges with the January 15-21,
Before I share province info, it's important to know that estimated infection numbers are similar to recent numbers for the UK, even without much XBB.1.5.

Here's a screenshot from @ONS showing infection numbers from randomly sampled testing.

About 1 in 20 people infected. This is a screenshot from the UK Office of National Statisti
@ONS There have been big changes in the most recent week, partly because December holiday data finally came in and we started getting waste water data for the end of December/early January.
Read 72 tweets

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