October 22, 2020

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COVID-19 by the numbers

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The Winnipeg Free Press is tracking the status of COVID-19 in Manitoba, as reported daily by provincial health authorities. 


Chart showing daily cumulative counts of positive COVID-19 cases


Chart showing new daily cases and seven-day moving average


Chart showing new daily tests and seven-day moving average


Chart showing rate of new cases in the previous 14 days per 100,000 people.


Cases across Manitoba

Chart showing cumulative cases of COVID-19 by regional health authority


Chart showing active cases of COVID-19 by regional health authority


Chart showing cumulative cases of COVID-19 by health district


Chart showing Manitoba's reported COVID-19 cases by age and gender


Chart showing demographic distribution of COVID-19 cases across regional health authorities


Case rates in Manitoba

 

Another important statistic is per capita value, which helps compare a value among groups of different sizes.

Generally speaking, more populous areas will have more tests, positive cases and deaths simply because there are more people. To effectively compare areas with different populations, we determine how many tests, cases and deaths there are for each person in the area. "Per capita" means "per person." 

Per-capita data is usually reported "per 100,000" to avoid using tiny decimal values.

Chart showing the active case rate of COVID-19 by health district


Proportion of positive tests

The percentage of tests that are positive -- referred to as the positivity rate or test positive proportion by the province -- shows the infection rate among those tested for the virus. This is another indicator for the extent of infections within Manitoba.

A higher positivity rates indicates that the virus is more widespread in the population. 

Chart showing the daily and rolling five-day positivity rate for COVID-19 in Manitoba


COVID-19 across Canada 

CANADA COVID CASES OVER TIME


COVID-19 CASES IN CANADA


Comparison of COVID-19 active cases per capita across the provinces


Comparison of COVID-19 testing per capita across the provinces


Comparison of COVID-19 cases per capita across the provinces


Comparison of COVID-19 deaths per capita across the provinces


The growth of COVID-19

Tracking the growth of reported COVID-19 cases in Canada, from the tenth case onward, illustrates possible trajectories based on other provinces that are further along the COVID-19 timeline.

This chart uses a logarithmic scale, also known as a log scale, on the y-axis to plot case counts for each province.

Logarithmic scales, which are exponential as rather than linear, are useful for displaying and analyzing data that covers a wide range of values. Using a log scale allows the chart to show both the low hundreds in New Brunswick and the high tens of thousands in Quebec without minimizing or downplaying either extreme. 

Beyond COVID-19, logarithmic scales are used to measure the magnitude of earthquakes and the intensity of sound.

Chart showing growth curves for days since the 10th reported cases of COVID-19 in applicable provinces and territories

Michael Pereira

Michael Pereira
Data journalist

Michael Pereira is a data journalist and developer who spends his days pulling data from (sometimes unwilling) sources, extracting meaning for readers and producing graphics that tell a story.

   Read full biography

History

Updated on Wednesday, October 14, 2020 at 1:12 PM CDT: Reorders graphics

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