(City of Ottawa, ON, Canada)
|
COVID-19 - Historic
Info & Stats (2020 - 2024) (City of Ottawa, ON, Canada) |
*** HISTORICAL INFORMATION BELOW (Last Updated: 2024) ***
This page contains historical data from the Ottawa COVID-19 Dashboard and graphs tracking Deaths, Cases, Hospitalization, ICU, COVID Wastewater and school stats in the city of Ottawa, Ontario, Canada from 2020 July 2023.
You can also find COVID-19 Weekly Stats for Ottawa, Canada and COVID-19 Articles and Calculators and COVID-19 Weekly Stats for Ontario, Canada and Historical Data of Ontario, Canada, and Global and Measles Stats for Ontario, Canada.
Table of Contents
1. Total Deaths
2. Historical Cases
3. Historical Hospitalization, ICU, and New
Deaths
4. Probability 1 Person (or more) is Infected in
Group of Size n
5. Rt (Effective Reproduction Number)
6. Response Framework
7. New Cases by Age Group
8. Ottawa School Stats
9. Ottawa Vaccine Coverage
This graph shows the cumulative # of COVID-19 deaths in the city of Ottawa, ON, Canada
Ottawa Historical 7-day Rolling Average
The graph below shows the 7-day rolling average of COVID-19viral signal in wastewater which provides a city-wide view of COVID activity to help determine if the number of infected people in Ottawa is increasing, decreasing, or staying the same.
**NOTE**: Since Ontario and Ottawa are no longer testing the general public for COVID-19, case counts are no longer accurate in 2022 but are now reflective of the health care worker environment, LTC, and high risk settings that are still being tested. Wastewater viral signal provide a more accurate view at the population level and as such case counts will no longer be updated.
Ottawa Historical Hospitalization, ICU, and New Deaths
On July 1, 2023 OPH changed their hospitalization reporting. This graph is provided for historical purposes showing Ottawa resident hospitalization and death *for* COVID-19 and does not include non-residents using Ottawa hospital beds from the start of the pandemic to July 1, 2023.
Note: Number of patients hospitalized for COVID-19 has already been filtered by Ottawa Public Health (OPH) to only show those hospitalized *due to* COVID-19 and represents all patients in Ottawa hospitals including non-residents using Ottawa hospital beds. OPH stopped updating their currently hospitalized data at the beginning of March 2024. For data on patient hospitalization and death before July 1, 2023, please see historical graph below.
Ottawa Probability 1 Person (or more) is Infected in Group of Size nThe probability that one or more individuals is infectious in a group of size n, given a per-person probability p of being infectious is: 1–(1–p)n. Using the active number of cases in Ottawa, the graph shows the probability that 1 or more people is infected with COVID-19 in groups of varying sizes such as 10 (personal bubble), 15 (high school classroom), 25 (classroom), 50 (indoor limit), 200 (event), 1000 (large retailer), 2000 (big office building), and 5000 (large event). If you want to calculate your own probabilities, you can use the online spreadsheet to do so.
Seroprevalence is testing with a sample of the population using blood to detect COVID-19 antibodies and estimate what percentage of the population has actually been infected, including those that never got a PCR RNA COVID-19 test. Ontario does such surveillance, and in the latest report for the period ending October 31, 2020 they found that 1.2% of the Ontario population was positive for antibodies. The graph below shows two results, a lower bound which is just the known active cases and a seroprevalence estimate using 1.2% (the provincial average) to estimate the additional active cases that got missed in testing.
Source of data: https://www.ottawapublichealth.ca/en/reports-research-and-statistics/daily-covid19-dashboard.aspx
Ottawa Rt (Effective Reproduction Number)
Rt is the effective reproduction number, which determines the potential for epidemic spread at a specific time t with whatever control measures are currently in place for a population (masks, physical distancing, etc...). Rt shows the average number of additional infections caused by an initial infection at a specific time. If Rt stays below 1, that means each infection on average leads to less than 1 more infected person so sustained transmission is unlikely. If it gets above 1, that means the number of infected cases will start to grow rapidly. So you want to see Rt below 1.0 which indicates that the outbreak is under control.
The graph below shows some of the indicators used in the Ontario Response Framework for people to better see whether Ottawa is getting closer to moving into a different response category. It seems that Ontario ignored its own Public Health Ontario (PHO) advice and multiplied their recommendations by 2 or 4 times which is why the values are so high for each category. Ontario has since reduced those values somewhat after the massive outcry. I have included in the table below both the original PHO advice and what Ontario is currently using for comparison.
| Indicator |
PREVENT |
PROTECT | RESTRICT | CONTROL |
||||
| Ontario |
PHO |
Ontario |
PHO |
Ontario |
PHO |
Ontario |
PHO |
|
| Weekly incidence rate per 100k people | < 10 | < 5 | 10 to 24.9 | 5 to 9.9 | 25 to 39.9 | 10 to 25 | >= 40 | >= 25 |
| % Positivity | < 0.5 | < 0.5 | 0.5 to 1.2 | 0.5 to 1.2 | 1.3 to 2.4 | 1.2 to 2.5 | >= 2.5 | >= 2.5 |
| Rt (effective reproduction number) | < 1 | 1 | 1 to 1.1 | >= 1.2 | ||||
| Level of community transmission | Stable | Stable or Increasing | Stable or Increasing | Increasing | ||||
The graph below shows the 7-day rolling average of daily new cases per 100K population split by age group and is updated weekly on Sunday mornings.
Source of data: https://open.ottawa.ca/datasets/covid-19-cases-and-deaths-in-ottawa
The follow graph tracks school absenteeism in Ottawa including the neighbourhoods of Barrhaven, Gloucester, Kanata, Nepean, and Orleans. It shows the min, average, and max percentage of students and staff absent for each school day. Schools reporting 0% and 100% absence are removed before plotting the graph.
Source of data: https://data.ontario.ca/dataset/summary-of-cases-in-schools
Ontario stopped reporting the following data as of Dec. 23, 2021. The following table shows the # of schools with active COVID-19 confirmed cases and the breakdown of elementary and secondary schools with open outbreaks (2 or more cases transmitted within the school). It also shows the school targeted testing positivity which are infected cases that likely would have otherwise gone undetected. The graph below shows the active # of student and staff COVID-19 confirmed cases in Ottawa schools over time. If you want to see the names of the schools that have active cases, see this report.
Source of data: https://data.ontario.ca/dataset/summary-of-cases-in-schools
Source of data: https://open.ottawa.ca/datasets/covid-19-cases-and-deaths-in-ottawa
Vaccine Stats &
Coverage (Ottawa)
The information below shows the vaccine stats for the city of Ottawa, ON, Canada. Source of data comes from the Ottawa Vaccination Dashboard.
Since COVID vaccine antibody levels wane over time, especially after 4-6 months, the time since last vaccine dose is an important measure to help estimate the amount of immunity that is available in the city. The following charts show the population vaccination coverage since last dose for residents age 6 months and older.
This next set of charts shows the vaccine coverage for the primary series of COVID-19 vaccines (first 2 doses) by age group in the city for residents age 6 months and older.
|
 |