COVID-19 Surveillance
Leeds, Grenville & Lanark District Health Unit
To align with the Ministry of Health’s reporting system; our daily summary is based on data that is available as of 4:00pm the previous day.
Data Summary and Key Messages
The change in cases identified in Leeds, Grenville & Lanark District since the last report is 1. To date, there has been 640 cases, 28 of which are active, 559 of which have resolved, and 53 of which have been fatal. There are currently 0 active outbreak(s) within institutions.
COVID-19 Case Summary for LGLDHU1,2,3
Daily COVID-19 case counts peaked in LGLDHU in mid-April. Currently, there have been no new cases locally since Dec 20.
| Table 1: Case Outcomes | Total = 640 |
|---|---|
| Outcome, n (%) | |
| Resolved | 559 (87%) |
| Fatal | 53 (8%) |
| Active | 28 (4%) |
| Table 2: Case Types by Case Outcomes | Case Outcomes | |||
|---|---|---|---|---|
| Resolved | Fatal | Active | Overall | |
| Case Type, n (%) | ||||
| Community | 321 (57%) | 4 (8%) | 28 (100%) | 353 (55%) |
| Health Care Worker | 95 (17%) | 0 (0%) | 0 (0%) | 95 (15%) |
| LTCH or RH Resident | 143 (26%) | 49 (92%) | 0 (0%) | 192 (30%) |
| Table 3: Case Interventions1 | Total = 6401 |
|---|---|
| Ever Hospitalized, n (%) | 50 (8%) |
| Ever in ICU, n (%) | 8 (1%) |
| Ever Ventilated, n (%) | 6 (1%) |
| Currently Hospitalized, n (%) | 0 (0%) |
| Currently in ICU, n (%) | 0 (0%) |
| Currently Ventilated, n (%) | 0 (0%) |
|
1
The hospital interventions we report on represent a gradient of severity, with hospitalization being the least severe and ventilation the most severe. To be ventilated, one must also be admitted to the ICU and thus also be hospitalized. However, someone can be hospitalized without being admitted to the ICU or ventilated. Therefore cases reported as being hospitalized may also appear as being in the ICU or ventilated at the same time.
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| Table 4: Case Demographics | Total = 640 |
|---|---|
| Age, median (min, max) | 58 (0, 104) |
| Age Group, n (%) | |
| <20 | 54 (8%) |
| 20-44 | 165 (26%) |
| 45-64 | 164 (26%) |
| 65+ | 257 (40%) |
| Gender, n (%) | |
| Female | 386 (60%) |
| Male | 254 (40%) |
Assessment Centre Tests Completed4
Assessment centre activity continues to be high at all assessment centres in LGLDHU.
Respiratory Related ED Visits to LGLDHU Hospital5,6
The aggregate trend in emergency department (ED) visits for respiratory-related complaints at local LGLDHU hospitals is increasing. This trend has also been observed for Ontario overall.
Respiratory Related ED Visits by Syndrome5,6
The aggregate trend in emergency department (ED) visits for respiratory-related complaints at local LGLDHU hospitals is showing an increasing trend over time. This trend has also been observed for Ontario overall. Currently, respiratory-related complaints account for 6% of LGLDHU hospital ED visits.
Respiratory Related Admissions by Syndrome5,6
The aggregate trend in emergent admissions for respiratory-related reasons at local LGLDHU hospitals is showing a slowly increasing trend over time. The same trend has been observed for Ontario overall. Currently, respiratory-related complaints account for about 3% of LGLDHU hospital admissions.
Data Caveats
Note 1: LGLDHU and provincial counts may differ due to data abstraction time differences.
Note 2: Resolved case statistics do not include deaths but do include residual effects cases (see glossary for definition).
Note 3: Numbers of deaths on this report are determined by criteria set out by the Ministry of Health to establish if COVID-19 was a contributing factor to the death.
Note 4: Includes Almonte, Brockville , Kemptville, and Perth-Smiths Falls COVID-19 assessment sites. There is a 24-hour delay in assessment centre data reporting.
Note 5: Reporting hospitals include: Brockville General (BRGH), Kemptville District (KEDH), Carleton Place Memorial (CCC), Smiths Falls (SFH), Perth (GWMH).
Note 6: Respiratory-related emergency department visits or admissions include: bronchitis, croup, influenza-like illness (ILI), pneumonia, and respiratory syndromes.
Definitions
Aggregate trend: The process of smoothing out time series data to make it easier to distinguish real trends from erratic day-to-day fluctuations in case counts. Usually accomplished by averaging several days worth of data. Also known as a moving average or data smoothing.
Assessment centre: Assessment Centres are out-of-hospital clinics where people can be seen by a health-care provider for COVID-19 concerns, rather than having to visit an Emergency Department, Urgent Care Centre or family doctor’s office. There is no medication or treatment onsite at COVID-19 Assessment Centres. Ontario’s COVID-19 Assessment Centres are intended to educate and provide further guidance as well as to triage individuals and determine the next steps in their care.
Case fatality rate: Number of COVID-19 related deaths divided by the total number of cases. Expressed as a percentage.
Case positivity rate: Number of COVID-19 cases divided by the total number of positive and negative lab reports received. Expressed as a percentage.
CCM: Case and Contact Management: Ontario’s public health units (PHUs) use CCM to manage all COVID-19 cases and contacts data.
Community case: A case that is neither a resident of a long-term care facility nor a healthcare worker and lives within the geographic boundaries of the Leeds, Grenville & Lanark District Health Unit.
Institutional outbreak: Institutional outbreaks, as presented in this report, include retirement and long-term care facilities, hospitals, and licensed child care centres but not school outbreaks as these are not considered institutional.
iPHIS: Integrated Public Health Information System: an information system for the reporting and surveillance of diseases of Public Health significance in Ontario. Each public health unit is responsible for collecting case information on reportable communicable diseases occurring within their boundaries and entering information into iPHIS. Cases are classified in iPHIS according to the Ontario Ministry of Health and Long-Term Care (MOHLTC) case definitions.
Median age: The median value is simply the division of a set of measurements into two equal parts where half of the measurements are above and half are below the median (middle) value.
Resolved case: The term resolved (or recovered) COVID-19 cases indicate a case that did not die from the disease and no longer is considered to be infectious. This includes individuals that are at least 14-days past symptom onset with COVID-19 symptoms resolving, and asymptomatic individuals that are 14 days from the date of the positive test. Some resolved individuals with severe disease may still continue to have residual effects of the COVID-19 infection. A residual effect is any health care need (e.g., use of oxygen) or impact on health that was not present before the case’s onset of COVID-19.
Remote positive case: An individual without symptoms who tests positive initially and then a repeat test close to the first is negative. They are not infectious, and may have had COVID-19 infection in the past. There is some remaining part of the virus that was detected on the first test. This individual is included in the total number of cases, but is not included on Figure 1 as we don’t know when the individual may have been infected.
Syndromic surveillance: Provides real-time epidemiological surveillance of local hospital emergency department visits and hospital admissions. Syndromic surveillance data is categorized based on chief complaint at time of hospital triage. The data presented in this report is obtained in real time to provide situational awareness for emerging or ongoing COVID-19 activity in our population. Hospital triage data does not constitute a diagnosis but should be considered a proxy for trends in COVID-19 disease incidence in our communities.
Contact Information
For more information visit: https://healthunit.org/coronavirus/, call the Infectious Diseases Line at (613) 345-5685 (ext. 2222) or contact the epidemiologist at [email protected]