Weekly Report on the Epidemiology of COVID-19 in Ireland Week 6 COVID-19 Epidemiology Team, 15/02/2021 Health Protection Surveillance Centre, HPSC Dates to note: • Week 6 (7 th February to 13 th February 2021) • Week 48 (22nd to 28th November 2020) • Week 10 (1 st to 7 th March 2020)– The beginning of the pandemic in Ireland Note: The epidemiological weeks in this report, run from Sunday to Saturday, please refer to appendix 1 for a complete list of epidemiological weeks with start and end dates. Note: Data were extracted from Computerised Infectious Disease Reporting (CIDR) system on 15/02/2021 and are provisional and subject to ongoing review, validation and update. As a result, figures in this report may differ from previously published figures.
Transcript
Weekly Report on the Epidemiology of COVID-19 in Ireland
Week 6
COVID-19 Epidemiology Team, 15/02/2021
Health Protection Surveillance Centre, HPSC
Dates to note:
• Week 6 (7th February to 13th February 2021)
• Week 48 (22nd to 28th November 2020)
• Week 10 (1st to 7th March 2020)– The beginning of the pandemic in Ireland
Note: The epidemiological weeks in this report, run from Sunday to Saturday, please refer to appendix 1 for a complete list of epidemiological weeks with start
and end dates.
Note: Data were extracted from Computerised Infectious Disease Reporting (CIDR) system on 15/02/2021 and are provisional and subject to ongoing review, validation and update. As a result,
figures in this report may differ from previously published figures.
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Summary characteristics
of COVID-19 cases
notified in Ireland
Data source: CIDR February 15th 2021
* Total deaths reported include deaths from confirmed cases only.
**The number of deaths relate only to cases who were notified and who died in week 6. It does not include cases who were notified prior to week 6 and who died in week 6.
***The number of cases who were hospitalised and the number of cases who were admitted to ICU relate only to cases who were notified and admitted to hospital or ICU in week 6. It does not include cases who were notified prior to week 6 and who were admitted to hospital or ICU in week 6.
Number Percent Number Percent
Total number of confirmed cases 209,581 6,041
Incidence rate of confirmed cases per 100,000 population 4401.2 126.9
Number of cases hospitalised 11,975 5.71 399*** 6.60
Number of cases admitted to ICU 1,208 0.58 11*** 0.18
Number of deaths among confirmed cases 3,690 1.76 7 0.12
Case fatality ratio (CFR %) 1.76 0.12
Incidence rate of confirmed deaths per 100,000 population 77.49 0.15
Number of cases associated with clusters 60,091 28.67 390 6.46
Number of imported cases 872 0.42 2 0.03
Number of cases in healthcare workers 26,156 12.48 325 5.38
Males 99,232 47.35 2,957 48.95
Females 110,289 52.62 3,073 50.87
M:F ratio 0.90 0.96
Median (years) 38 34
Mean age (years) 40 37
Age range (years) 0 - 120 0 - 102
Total
(week 10, 2020-
week 6, 2021 )
Week 6, 2021
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Figure 1: Number of confirmed COVID-19 cases by notification week and epidemiological week in Ireland between week 8, 2020 and
week 6, 2021.
At the end of week 53 a significant number of cases were awaiting processing, as a result the number of cases reported in week 53 is reduced and the number of cases
reported in week 1 is inflated.
In between week 15 and 16 (05/04/2020 – 19/04/2020) the daily number of COVID-19 events notified in Ireland is inflated due to batch reporting of cases with specimen dates between from 19/03/2020 – 01/04/2020
in addition to real-time reporting of cases with contemporaneous specimen dates
Data source: CIDR February 15th 2021
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Figure 2: Number of confirmed COVID-19 cases by notification week and weekly incidence rate per 100,000 population in Ireland between week
10, 2020 and week 6, 2021.
At the end of week 53 a significant number of cases were awaiting processing, as a result the number of cases reported in week 53 is reduced and the number of cases
reported in week 1 is inflated.
Population data were taken from Census 2016
Data source: CIDR February 15th 2021
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Figure 3: Number of confirmed COVID-19 cases , and 7-day moving average, by notification date in Ireland between week 48, 2020 and
week 6, 2021.
At the end of week 53 a significant number of cases were awaiting processing, as a result the number of cases reported in week 53 is reduced and the number of cases
reported in week 1 is inflated.
*on the 04/12/2020 the number of COVID-19 cases notified in Ireland is inflated due to the inclusion of cases notified earlier in week 49 which were batch reported
following an IT issue on 02/12/2020
Data source: CIDR February 15th 2021
*
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Figure 4a: Cumulative 14-day incidence rate of confirmed COVID-19 cases per 100,000 population notified in Ireland by notification and
epidemiological date* between week 8, 2020 and week 6, 2021. At the end of week 53 a significant number of cases were awaiting processing, as a result the number of cases reported in week 53 is reduced and the number of
cases reported in week 1 is inflated.
*Epidemiological date: is based on the earliest of dates available on the case and taken from date of onset of symptoms, date of diagnosis, laboratory specimen collection date, laboratory received
date, laboratory reported date or event creation date/notification date on CIDR. By using this date rather than event creation/notification date, adjusts for any delays in testing/notification. Please note
that the trend in cases by epidemiological date will show a lag for recent days and therefore should be interpreted with caution.
Data source: CIDR February 15th 2021
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Figure 4b: Cumulative 14-day incidence rate of confirmed COVID-19 cases per 100,000 population notified in Ireland by notification and
epidemiological date between week 48, 2020 and week 6, 2021. At the end of week 53 a significant number of cases were awaiting processing, as a result the number of cases reported in week 53 is reduced and the number of
cases reported in week 1 is inflated.
Data source: CIDR February 15th 2021
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Table 1: Characteristics of confirmed COVID-19 cases
notified in Ireland during week 6, 2021.
*Symptom status is recorded at the time of test and is not updated;
therefore, a proportion of the asymptomatic cases may subsequently
develop symptoms however this will not be captured in the data.
Data source: CIDR February 15th 2021
Characteristic Week 6 Percent
6,041 100
Sex Male:Female ratio 0.96
Male 2,957 48.9
Female 3,073 50.9
Unknown 11 0.2
Age Mean age (years) 34
Median age (years) 37
Age range (years) 0 - 102
0-4 yrs 326 5.4
5-12 yrs 468 7.7
13-18 yrs 502 8.3
19-24 yrs 765 12.7
25-34 yrs 1,006 16.7
35-44 yrs 930 15.4
45-54 yrs 804 13.3
55-64 yrs 559 9.3
65-74 yrs 291 4.8
75-84 yrs 242 4.0
85+ yrs 147 2.4
Unknown 1 0.0
Symptomatic* Yes 3,147 52.1
No 1007 16.7
Unknown 1,887 31.2
Total number of confirmed cases
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Figure 5a: Cumulative age- and sex-specific incidence
rates of confirmed COVID-19 cases per 100,000
population notified in Ireland between week 10, 2020
and week 6, 2021.
(excluding 68 cases for whom age is unknown, 59
cases for whom sex is unknown and one case for
whom both are unknown)
Data source: CIDR February 15th 2021
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Figure 5b: Cumulative age- and sex-specific incidence
rates of confirmed COVID-19 cases per 100,000
population notified in Ireland between week 48, 2020 and
week 6, 2021.
(excluding 43 cases for whom age is unknown, and 51
cases for whom sex is unknown)
Data source: CIDR February 15th 2021
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Figure 5c: Cumulative age- and sex-specific incidence
rates of confirmed COVID-19 cases per 100,000
population notified in Ireland during week 6, 2021.
(excluding one case for whom age is unknown, and 6
cases for whom sex is unknown)
Data source: CIDR February 15th 2021
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Figure 6a: Weekly age-specific incidence rates of confirmed COVID-19 cases per 100,000 population in Ireland between week 48, 2020 and
week 6, 2021.
At the end of week 53 a significant number of cases were awaiting processing, as a result the incidence rates reported in week 53 are reduced and the incidence
rates reported in week 1 are inflated.
Data source: CIDR February 15th 2021
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Figure 6b: Weekly age-specific incidence rates of confirmed COVID-19 cases per 100,000 population in Ireland between week 48, 2020 and
week 6, 2021.
At the end of week 53 a significant number of cases were awaiting processing, as a result the incidence rates reported in week 53 are reduced and the incidence rates
reported in week 1 are inflated.
Data source: CIDR February 15th 2021
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Figure 6c: Weekly age-specific incidence rates of confirmed COVID-19 cases per 100,000 population in Ireland between week 48, 2020 and
week 6, 2021.
At the end of week 53 a significant number of cases were awaiting processing, as a result the incidence rates reported in week 53 are reduced and the incidence rates
reported in week 1 are inflated.
Data source: CIDR February 15th 2021
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Figure 7: Heat map of weekly age-specific incidence rates of confirmed COVID-19 cases per 100,000 population in Ireland between week
48, 2020 and week 6, 2021.
At the end of week 53 a significant number of cases were awaiting processing, as a result the incidence rates reported in week 53 are reduced and the incidence
Figure 8: Heat map of weekly incidence rates of confirmed COVID-19 cases per 100,000 population, by county, notified in Ireland between week
48, 2020 and week 6, 2021.
At the end of week 53 a significant number of cases were awaiting processing, as a result the incidence rates reported in week 53 are reduced and the incidence rates
Figure 9: Weekly Incidence rates of confirmed COVID-19 cases per 100,000 population, by HSE area, notified in Ireland between week 48,
2020 and week 6, 2021.
At the end of week 53 a significant number of cases were awaiting processing, as a result the incidence rates reported in week 53 are reduced and the incidence
rates reported in week 1 are inflated.
Data source: CIDR February 15th 2021
HSE-E HSE-M HSE-MW HSE-NE HSE-NW HSE-SE HSE-S HSE-W National
Figure 12a: Number of SARS-CoV-2 tests and positive tests*
in Ireland between week 13, 2020 and week 6, 2021.
Figure 12b: Number of SARS-CoV-2 negative and positive tests*
completed in Ireland between week 13, 2020 and week 6, 2021.
*Positive tests refers to all positive specimens and includes duplicates and individuals who were retested
Laboratory data for COVID-19 cases
Data source: Deloitte Ireland LLP February 15th 2021
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Figure 13a: Number of sentinel GP COVID-19 referrals by week of consultation, weeks 48 2020-6 2021, Ireland. The epidemiological week is
Monday-Sunday (ISO week) in line with influenza/COVID-19 international reporting to European Centre for Disease Prevention and Control (ECDC).
Number of sentinel GP COVID-19 referrals by week of consultation
Data source: Irish sentinel GP network, February 16th 2021
• The Irish Sentinel GP
Surveillance Scheme is a
collaboration between the
Health Protection Surveillance
Centre, the National Virus
Reference Laboratory and the
Irish College of General
Practitioners.
• The sentinel GP network
comprises 60 general practices
and 166 practitioners, covering
6.6% of the national population
(CSO Census 2016).
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% SARS-CoV-2 positivity data from sentinel GP COVID-19 referrals tested by NVRL
Data source: Irish sentinel GP network, February 16th 2021
Figure 13b: % SARS-CoV-2 positivity data from sentinel GP COVID-19 referrals tested by the NVRL by week specimen was taken, weeks 48 2020
to 6 2021. The Epidemiological week is Monday to Sunday (ISO week) in line with influenza/COVID-19 international reporting to ECDC.
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Figure 14: Number of hospitalised COVID-19 cases based on ICU admission status in Ireland between week 10, 2020 and week 6, 2021*
*Please note that the most recent weeks may not yet reflect all admissions.
Hospitalisations and ICU admissions among COVID-19 cases
Data source: CIDR February 15th 2021
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Table 3: Summary of deaths in all COVID-19 cases notified in
Ireland between week 10, 2020 and week 6, 2021.
Deaths among COVID-19 cases
Table 4: Number of deaths in all COVID-19 cases by sex and
age group notified in Ireland between week 10, 2020 and week
6, 2021.
Data source: CIDR February 15th 2021
Number Percent
Total number of deaths 3,948
confirmed 3,690 93.5
probable 92 2.3
possible 166 4.2
Number hospitalised who died 1924 48.7
admitted to ICU who died 311 7.9
not admitted to ICU who died 1613 40.9
Number of imported cases who died 5 0.1
Number of HCWs who died 12 0.3
Number with underlying conditions who died 3,267 82.8
Males who died 2063 52.3
M:F ratio 1.09
Median age (years) 83
Mean age (years) 81
Age range (years) 17 - 105
Age group (years) Female Male Total Percent
< 45 20 17 37 0.9
45-54 yrs 22 36 58 1.5
55-64 yrs 66 116 182 4.6
65-74 yrs 207 383 590 14.9
75-84 yrs 576 778 1354 34.3
85+ yrs 992 733 1725 43.7
Unknown <5 <5 <5 0.1
Total 1885 2063 3948 100.0
Percent 47.7 52.3
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Figure 15a: Daily and 7-day moving average number of deaths among COVID-19 cases notified in Ireland by date of death and
cumulative total between week 10, 2020 and week 6, 2021. * Date of death is not yet available for 15 cases
Data source: CIDR February 15st 2021
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Figure 15b: Daily and 7-day moving average number of deaths among COVID-19 cases notified in Ireland by date of death and cumulative total, between week 48, 2020 and week 6, 2021. Please note: a lag in time between reporting of deaths and data extraction is expected and as such most recent dates will not yet reflect all deaths on that date.
Data source: CIDR February 15th 2021
Please refer to the Health Protection Surveillance (HPSC) website for specific reports on
• 14 Day report epidemiology of COVID-19 in Ireland
• Outbreaks/clusters in Ireland COVID-19 weekly report
• Underlying Conditions in confirmed cases of COVID-19 in Ireland weekly report
• Healthcare Workers in Ireland COVID-19 weekly report
Acknowledgements
Sincere thanks are extended to all those who are participating in the collection of data and reporting of data used in these reports. This includes the HSE COVID-19 Contact Management Programme (CMP), staff in ICU units, notifying clinicians, laboratory staff, public health doctors, nurses, surveillance scientists, microbiologists and administrative staff.
Report prepared by COVID-19 Epidemiology Team, HPSC
• Data are based on statutory notifications and were extracted from Computerised Infectious Disease Reporting (CIDR) system at 09:30 on 18/01/2021. Data are provisional and subject to ongoing review, validation and update. As a result, figures in this report may differ from previously published figures.
• Slides 23 and 24 include data reported from the Irish sentinel GP network.
2. Epidemiological date
• Epidemiological date is based on the earliest of dates available on the case and taken from date of onset of symptoms, date of diagnosis, laboratory specimen collection date, laboratory received date, laboratory reported date or event creation date/notification date on CIDR. By using this date rather than event creation/ notification date, adjusts for any delays in testing/notification.
3. Population data
• Population data were taken from Census 2016. Data were aggregated into the following age groups for the analysis: 0-4 years, 5-12 years, 13-18 years, 19-24 years, 25-34 years, 35-44 years, 45-54 years, 55-64 years, 65-74 years, 75-84 years and ≥ 85 years.
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Appendix 1: Epidemiological weeks, start and end dates, 2021
• Note: Epidemiological week is from Sunday to Saturday in line with the Infectious Disease Regulations 1981 and subsequent amendments
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