This publication has been produced by Antimicrobial Resistance and Healthcare Associated Infection (ARHAI) Scotland, part of NHS National Services Scotland. ARHAI publications are not made available under terms of the OGL.

About this release

This release by Antimicrobial Resistance and Healthcare Associated Infection (ARHAI) Scotland, part of NHS National Services Scotland, under the Health Protection Scotland (HPS) COVID-19 response provides data for COVID-19 hospital onset cases in Scotland from week ending 1 March 2020 to week ending 30 May 2021. A system for monitoring COVID-19 is critical to tracking hospital transmission. This helps to inform infection prevention and control measures. The transmission of COVID-19 is thought to occur mainly through respiratory droplets generated by coughing and through contact with contaminated surfaces. Infections have been widely reported in the community. Further information on the epidemiology of COVID-19 in healthcare settings can be found on the Health Protection Scotland website (PDF).

Main points

Breakdown of COVID-19 cases by hospital onset status – weekly data

The total number of COVID-19 cases reported to ARHAI Scotland this week (week ending 30 May 2021) was 3,658. Of these:

  • 3,612 (98.7%) were reported as community onset (first positive specimen taken in the community). In the previous week (week ending 23 May 2021) there were 2,509 (98.2%).
  • 38 (1.0%) were reported as non-hospital onset (first positive specimen on day 1 or 2 of admission to NHS board). In the previous week (week ending 23 May 2021) there were 34 (1.3%).
  • 3 (0.1%) were reported as indeterminate hospital onset (first positive specimen on days 3 to 7 of admission to NHS board). In the previous week (week ending 23 May 2021) there were 5 (0.2%).
  • 2 (0.1%) were reported as probable hospital onset (first positive specimen on days 8 to 14 of admission to NHS board). In the previous week (week ending 23 May 2021) there were 2 (0.1%).
  • 3 (0.1%) were reported as definite hospital onset (first positive specimen date was 15 or more days after admission to NHS board). In the previous week (week ending 23 May 2021) there were 4 (0.2%).
Image caption Epidemic curve of COVID-19 cases with first positive specimen taken during an inpatient stay, by onset status: week-ending 1 March 2020 to week-ending 30 May 2021 (n= 15,514)
Figure 1 is an epidemic curve of COVID-19 cases with first positive specimen taken during an inpatient stay. The length of the bars are the counts of COVID-19 cases during each week, from week ending 1 March 2020 to week ending 30 May 2021, with the bars broken down by hospital onset status: non-hospital onset (day 1 or 2 of in-patient stay), indeterminate hospital onset, probable hospital onset and definite hospital onset. The chart shows a steep increase in overall cases and definite hospital onset cases until a peak on week ending 5 April 2020. This is followed by a decline in overall cases and definite hospital onset cases since this peak; few cases were observed during July and August 2020. A subsequent increase was observed in overall and definite hospital onset cases from week ending 30 August 2020, plateauing towards the end of 2020, followed by a further increase in overall and definite hospital onset cases from week ending 3 January 2021 to a peak on week ending 17 January 2021. Since this peak in January 2021, there has been a decline in overall and definite hospital onset cases, with very low levels currently being observed.
  1. Source of data is Electronic Communication of Surveillance in Scotland (ECOSS) data and Rapid Admission Preliminary Inpatient Data (RAPID) data or local admission data.
  2. The community cases are not represented in this chart as first sample was not taken in hospital setting.

Background

Antimicrobial Resistance and Healthcare Associated Infection (ARHAI) Scotland, part of National Services Scotland works closely with Public Health Scotland to deliver under the Health Protection Scotland (HPS) COVID-19 response. Local and national monitoring in hospital settings is required to reduce COVID-19 infections.

Further information

The next release of this publication will be 30 June 2021.

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Older versions of this publication

Versions of this publication released before 16 March 2020 may be found on the Data and Intelligence, Health Protection Scotland or Improving Health websites.

Last updated: 07 October 2022
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