covid-19 windsor and essex county: march 20, 2020 to april ... · distribution of covid-19 cases by...
TRANSCRIPT
COVID-19 Windsor and Essex County: March 20, 2020 to April 16, 2020
***Please note on Slide 7 “Distribution of COVID-19 Cases by Municipality” a correction was made to the number of residents in Kingsville and Lakeshore. The previous version of the slide showed 20% of COVID-19 cases were from Lakeshore whereas now only 4% are in Lakeshore. This is due to at the time of investigation, addresses pertaining to a long-term care home were close to the border of Kingsville and Lakeshore without a municipality identified (e.g., Woodslee). As a result a determination was made to allocate these cases to the nearest possible municipality which was identified as Lakeshore instead of Kingsville at the time. The figure has now been updated to reflect this change from Lakeshore to Kingsville result in a change in the distribution.
Purpose
• Providing an epidemiologic summary of COVID-19 activity in Windsor and Essex County (WEC) to date
Highlights
• At the time of reporting, there are 427 confirmed cases of COVID-19 in WEC between March 20th and April 16th.
• While cases in the community have started to decrease, more cases are being identified in long-term care and retirement homes in WEC.
• The incident rate of COVID-19 in WEC is higher compared to Chatham-Kent but slightly lower compared to Lambton County.
o The incident rate of COVID-19 in WEC is higher compared to Ontario. • Between April 6th and April 12th, approximately 16% of the tests returned as positive for COVID-
19 when tested for COVID-19 • The age of the cases range from 8 to 99 years (median of 55 years) with females accounting for
approximately 60% of all cases compared to approximately 40% in males. o Among females, 25% of all female cases were among those 80 years or older o Among males, 19% of all male cases were among those 50 to 59 years of age
• Approximately 63% of the cases reside in the City of Windsor. • Just under 30% of the cases reported close contact with a confirmed case as a potential source
of exposure to COVID-19. • 31% of the cases are healthcare workers and of these 134 healthcare workers, 31% travelled to
Michigan prior to becoming ill. • Of the COVID-19 cases reporting a risk factor, 22% had a cardiovascular condition while 11%
were obese and another 11% had asthma. • Fever (83%) was the most commonly reported symptom among cases with COVID-19 reporting
any symptoms followed by a cough (74%) and feeling fatigued (64%). • Approximately 46% of cases are still in self-isolation while 13% of cases have resolved. • 56% of cases that have died either had a chronic medical condition or had both, a chronic
medical condition and were immunocompromised. • The trajectory of the doubling rate for COVID-19 in Windsor is closer to three days.
APRIL 17, 2020
COVID-19 Epidemiological SummaryContent covered:• Epidemic curves
• By 1) overall; 2) community vs. LTCH and; 3) healthcare workers)
• Regional & provincial rates• Percent positivity of COVID-19 tests• Age & sex distribution• Distribution by Municipality• Exposure history• Travel History• Healthcare worker status• Risk Factors• Symptoms• Outcomes• Breakdown by deaths• Doubling time
2020-04-17
Epidemic Curve by Community vs. LTCH/RH
2020-04-17
0
5
10
15
20
25
30
35
40
45
50
# o
f co
nfi
rmed
CO
VID
-19
cas
es
Most recent episode date (e.g., sympton, date tested, date reported)
Community LTCH
Regional & Provincial Rates
2020-04-17
Windsor-Essex Chatham-Kent Lambton Middlesex-London Ontario
93.7 23.5 96.2 49.3 60.3
0.0
20.0
40.0
60.0
80.0
100.0
120.0
Rat
e p
er 1
00
,00
0 p
op
ula
tio
n
Region
Percent Positivity of People Tested for COVID-19
2020-04-17
0%
5%
10%
15%
20%
25%
30%
35%
40%
45%
0
20
40
60
80
100
120
140
160
180
200
% o
f te
sts
po
siti
ve f
or
CO
VID
-19
Tota
l # o
f te
sts
Date
Age & Sex Distribution
2020-04-17
0 to 19 years 20 to 29 years 30 to 39 years 40 to 49 years 50 to 59 years 60 to 69 years 70 to 79 years 80+ years
Males 1% 11% 12% 17% 19% 12% 11% 17%
Females 1% 13% 13% 11% 20% 11% 7% 25%
0%
5%
10%
15%
20%
25%
30%
% o
f kn
ow
n c
on
firm
ed c
ases
Distribution of COVID-19 Cases by Municipality
2020-04-17
Amherstburg4%
Essex2%
Kingsville16%
LaSalle4%
Lakeshore4%
Leamington3%
Tecumseh4%
Windsor63%
Please note a correction was made to this slide to what was presented.
Exposure History
2020-04-17
22%
29%
26%
24%
0%
5%
10%
15%
20%
25%
30%
35%
Travel Contact of a confirmed case Community Acquired Unknown
% o
f C
OV
ID-1
9 c
ases
Exposure
COVID-19 Cases by Healthcare Worker
2020-04-17
41
93
24
134 135
0
20
40
60
80
100
120
140
160
Healthcare worker Visited a health care facility Not applicable Unknown
# o
f co
nfi
rmed
CO
VID
-19
cas
es
Healthcare worker status
Travelled to Michigan
All other HCWs
Risk Factors
2020-04-17
0%
5%
10%
15%
20%
25%
30%
35%
40%
45%
Chronic MedicalCondition
Immunocompromised Chronic MedicalCondition &
Immunocompromised
Pregnant Not applicable Unknown
% o
f C
OV
ID-1
9 c
ases
Risk Factor
Top 5 Risk Factors
2020-04-17
22%
11%11%
10% 10%
0%
5%
10%
15%
20%
25%
Cardiovascular Asthma Obesity Diabetes Smoker
% o
f C
OV
ID-1
9 c
ases
rep
ort
ing
a ri
sk f
acto
r
Risk Factor
Symptoms
2020-04-17
74%
64% 63%
58%
83%
48% 48%
41% 40%38%
33%
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
Cough Fatigue Malaise Headache Fever Chills Shortnessof Breath
Diarrhea Nasal Con Loss ofappetite
Sore throat
% o
f co
nfi
rmed
CO
VID
-19
cas
es
Symptom
Outcomes
2020-04-17
13%
4%
46%
7%
1%
28%
0%
5%
10%
15%
20%
25%
30%
35%
40%
45%
50%
Resolved Deceased Self-isolating Hospitalized ICU Unknown
% o
f C
OV
ID-1
9 c
ases
Outcome
Breakdown of Deaths
2020-04-17
Chronic Medical Condition39%
Chronic Medical Condition/ Immunocompromised
17%
None11%
Unknown33%
Doubling Time
2020-04-17
1
10
100
1000
10000
100000
1000000
10000000
100000000
1000000000
10000000000
Mar-20 Mar-25 Mar-30 Apr-04 Apr-09 Apr-14 Apr-19
Tota
l co
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rme
d c
ase
s o
f C
OV
ID-1
9
Days Since First Case Reported
WEC Cumulative Cases