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COVID-19 situation report summary

Key points to note 

Wales is at Alert Level 1.

Overall transmission of COVID-19 is increasing but relatively low. The consensus estimate of the reproduction number for Wales is between 1.0 and 1.4. Source: SPI-M/SAGE, 9 June 2021. The case incidence and percentage of people testing positive for COVID-19 remains relatively low. Slide 3, Source: PHW

COVID-19 pressure on the NHS has generally stabilised and is now similar to the lowest levels since reporting began. Slide 4, Source: NHS Wales Operational data

87 additional cases of the variant Delta (B.1.617.2, first identified in India) have been identified in Wales, as at 9 June, bringing the total to 184 confirmed cases. Source: PHW  

While absolute case numbers in Wales are currently low, other areas of the UK are currently seeing large increases in case numbers of the Delta variant. Analysis using genomic data continues to show a substantially increased growth rate for Delta compared to the currently dominant Alpha (B.1.1.7) variant. Preliminary NHS data from England and Scotland Public Health Authorities also suggests an increased risk of hospitalisation, although with less severe illness and with a lower proportion of older age groups due to increased vaccine coverage (low confidence due to low case volume)

On vaccination, as at 9 June 2021, a total of 3.48 million doses of COVID-19 vaccine have been given in Wales. Of the 3.48 million doses given nationally, 2.19 million were first doses and 1.29 million were second doses. Current coverage will not offer population level protection in the absence of other protective behaviours. Source: PHW

Key indicators

Several key indicators are beginning to show an increase, following a period of low transmission in April and May.

Please note that the arrows represent a change in comparison for the last week.

  Current value (05/06/21) Change since previous week (29/05/21 – 05/06/21 unless stated otherwise)
    Percentage change Value change
Confirmed case rate (rolling 7 day sum per 100k) 12  +64% (+5)
Confirmed case rate for over 60s (rolling 7 day sum per 100k) 7 +23% (+1)
Test positivity (7 day RA) 1.3% +53% (+0.5 percentage points)
Population estimated to have COVID-19 (prevalence)1 0.08% -20% -     (-0.02 percentage points)
NHS capacity – Admissions2 4 0% - 0
ONS deaths (7 day sum)3 2 -67% - (-4)
PHW deaths (7 day sum) 1 -50% - (-1)
  1. Latest Covid Infection Survey data is taken from the 30 May 2021 to 5 June 2021.
  2. Seven day rolling average to the current date of confirmed COVID-19 patients – does not include COVID-19 suspected or recovering.
  3. Latest ONS deaths data is to 28 May 2021 (rather than 5 June 2021) for the current value. Data to 21 May 2021 is used for the change since previous week.

What is the current status of the epidemic?

Cases per 100,000 population (7 day period ending 4 June 2021)
Local Authority Number % of All Wales Total Case Incidence per 100,000 Incidence threshold reached Change from previous week
Conwy 36 0.102 30.7 25 to < 50 64% ↑
Swansea 57 0.161 23.1 20 to < 25 338% ↑
Gwynedd 21 0.059 16.9 15 to < 20 62% ↑
Flintshire 22 0.062 14.1 Under 15 120% ↑
Denbighshire 13 0.037 13.6 Under 15 30% ↑
Carmarthenshire 25 0.071 13.2 Under 15 92% ↑
Newport 19 0.054 12.3 Under 15 46% ↑
Cardiff 43 0.122 11.7 Under 15 26% ↑
Neath Port Talbot 16 0.045 11.2 Under 15 -11% ↓
Pembrokeshire 14 0.04 11.1 Under 15 40% ↑
Torfaen 10 0.028 10.6 Under 15 150% ↑
Isle of Anglesey 7 0.02 10 Under 15 250% ↑
Monmouthshire 8 0.023 8.5 Under 15 0% →
Wrexham 10 0.028 7.4 Under 15 -44% ↑
Rhondda Cynon Taf 16 0.045 6.6 Under 15 220% ↑
Blaenau Gwent 4 0.011 5.7 Under 15 100% ↑
Vale of Glamorgan 6 0.017 4.5 Under 15 0% →
Bridgend 6 0.017 4.1 Under 15 -74% ↓
Caerphilly 7 0.02 3.9 Under 15 75% ↑
Merthyr Tydfil 2 0.006 3.3 Under 15 100% ↑
Powys 4 0.011 3 Under 15 -20% ↓
Ceredigion 2 0.006 2.8 Under 15 -50% ↓
Unknown 5 0.014 -   0% →
Total 353 1 11.2 Under 15 45% ↑

At a Wales level, on 4 June, the 7-day rolling incidence of COVID-19 cases and the percentage of people testing positive for COVID-19 have increased slightly since last week. 

The SAGE/ SPI-M consensus estimate of Reproduction number (Rt) is 1.0 - 1.4 (as at 9 June 2021). When we look at reproduction numbers using PHW positive test data only (see second table below) - a more timely estimate but limited by variation in testing - we see a reproduction number estimate of 1.6 for Wales. At local health board level, there is considerable variation in the reproduction number (cases only) estimate, with the central estimate above 1 for Aneurin Bevan, Cardiff & Vale, Hywel Dda and Betsi Cadwaladr health boards, and above 2 for Swansea Bay. 

7-day cumulative case incidence remains low across Wales at 11.2 per 100,000 population. This is a slight increase compared to the previous report (7.7 per 100,000 population). 

Case incidence is increasing in most local authorities. Conwy is the only local authority with a case incidence above the 25 per 100,000 population threshold. Conwy's case incidence has increased over the past week. Swansea has a case incidence above 20 per 100,000 and has also increased over the past week.

Incidence varies by health board and age. Over the past week, case incidence has risen sharply for those aged 20 – 29, more than doubling from 12.2 to 24.6 per 100,000 population as at 4 June 2021.  

The table below also provides estimates of doubling and halving times based on COVID-19 positive test data. In this table, halving times are positive, whilst doubling times are negative. The 95% confidence intervals are showing in brackets after the central estimate. An asterisk (*) means that there are small numbers and estimates should be treated with caution. Local health board level estimates of Rt and halving times will be unstable when incidence is low.

Reproduction number (based on positive tests only) PHW data by Local Health Board as at 9 June 2021
Local Health Board Rt (cases) Halving time (days) 
All Wales 1.6 (1.5 to 1.7) 9 (6 to 17) DOUBLING
Swansea Bay UHB 2.2 (1.8 to 2.6) 7 (4 to 27) DOUBLING
CTM UHB 0.8 (0.6 to 1.1) 25 (6 to –10)
Aneurin Bevan UHB 1.3 (1.0 to 1.6) 17  (5 to -10) DOUBLING
Cardiff & Vale UHB 1.2 (0.9 to 1.5) 11 (6 to 144) DOUBLING 
Hywel Dda UHB* 1.5 (1.1 to 1.9) 11 (4 to –16) DOUBLING
Powys THB* 0.9 (0.5 to 1.3) 14 (3 to –6)
Betsi Cadwaladr UHB 1.4 (1.2 to 1.6) 11 (6 to –162) DOUBLING

Cases per 100k (PHW Data) (7 day rolling sum) 

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Graph showing cases per 100k by age

Cases per 100k by age (PHW Data) (7 day rolling sum) 

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Graphs showing cases per 100k by age

Data as at 12:00PM 09 June 2021 unless otherwise specified

What is the situation with the NHS and social care?

COVID-19 pressure on the NHS has generally stabilised and is now similar to the lowest levels since reporting began. As at 9 June 2021, there were 127 COVID-19 related patients (Suspected, Confirmed and Recovering) occupying a hospital bed. This compares to 131 (4 fewer occupied beds) on 2 June 2021. Confirmed patients accounted for 25 of the total occupied beds, and are at similar levels to mid-May 2021.  

There are 3 patients with Suspected or Confirmed COVID-19 in critical care beds in Wales. This is 161 lower than the maximum COVID-19 position of approximately 164. The total number of patients in critical care for both COVID-19 and non-COVID-19 stands at 154, 2 more than the historic maximum critical care capacity of approximately 152.

The situation with care homes remains stable with a relatively low number of care home incidents reported across Wales. 

In the 7 days up to 2 June 2021, 4 (0.4%) adult care homes in Wales notified CIW of one or more confirmed cases of COVID-19, in staff or residents. This is 3 fewer notifications compared to the last 7 days up to 26 May 2021. The number of notifications is similar to the lowest levels since the beginning of the reporting period on 16 December 2020. 

Confirmed hospital occupancy (7 day rolling average)

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Chart showing confirmed hospital occupancy has stabilised

Overall invasive ventilated bed occupancy (7 day rolling average)

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Chart showing invasive ventilated bed occupancy

Invasive ventilated bed occupancy for suspected and confirmed COVID-19 positive patients (7 day rolling average) 

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Invasive ventilated bed occupancy

Hospital bed occupancy for suspected and confirmed COVID-19 positive patients (7 day rolling average)

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Chart showing hospital bed occupancy

Number of adult care homes reported an ongoing outbreak/incident (last 7 days)

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Chart showing number of adult care homes reported an ongoing outbreak/incident

What is the situation with education, children and young adults?

Childcare settings

The latest National Situation Background Assessment Recommendation (SBAR) report covering the week of 31 May to 6 June reported 1 new cluster of 3 confirmed cases (1 child and 2 staff)  in a childcare setting.

Schools

The National SBAR for the above period reported 2 new clusters and 5 ongoing clusters associated with schools. There were 2 incidents attributed to a school setting and 5 attributed to household, social or extra-curricular activities. 

  • One Incident Management Team (IMT) reported 2 clusters of 3 cases each in a primary school and a comprehensive.  A further secondary school had 2 cases amongst pupils and another school had 2 cases that were thought to be due to in-school transmission. 
  • CTM updated that one school now has 30 cases within the school and 9 cases within families associated, but there is no evidence of onward community transmission and there have been no new cases in 2 days.  
  • There were no new cases reported in two schools that each reported one each last week. Source: National SBAR. 

Weekly COVID-19 incidence per 100,000 population for school age children and young adults in Wales (data as at 1pm 9 June 2021)

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Chart showing weekly COVID-19 incidence for school age children

Schools with more than one COVID-19 case identified within the last 21 days, excluding 43 schools with 1 COVID-19 case 

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Bar chart showing schools with more than one COVID-19 case identified within the last 21 days

Epidemiological curve of cases in all staff and pupils linked to a school between 01 September 2020 to 7 June for all Wales maintained schools

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Graph showing daily school cases

School Attendance

An average of 88% of all pupils were present in school over the week of 24 May to 28 May. This information is provisional and will be revised on 9 June. There is no data for the week of 31 May to 4 June due to the school holidays. Source: Stats Wales

Pupils present by day in Wales, from 07 September 2020

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Graph showing pupils present by day

Further Education (FE)

There are no new or ongoing clusters within FE settings in Wales. Source: SBAR

Higher Education Institutions (HEIs)

HEIs report cases notified to them by students and staff. From 1 February 2021 most HEIs have changed the way in which they report data, with positive cases referring only to students or staff attending campus or returning to the local area for study (with the exception of University of Wales Trinity St David's who are unable to split cases on this basis). Over the past week, the 7-day rolling average has been less than 3 positive COVID-19 cases for all HEI's. Source: Stats Wales

We now also capture data via the National SBAR from local IMTs. Three new clusters and five on going clusters were reported in HE settings last week. This compares to one new cluster of two individuals and three on going clusters over two health boards in the previous week. 
  
One health board area reported small linked clusters in two HMOs with five positive in total to date and likely to be Delta variant. The remaining new cluster was associated with two students living in the same flat. Source: National SBAR

There is currently voluntary lateral flow device (LFD) testing of childcare staff, school staff, FE and HEI staff; FE and HE students, and older secondary school aged pupils. Detailed information on LFD test outcomes is not yet available.

7 day rolling average of positive cases in Welsh universities 27 September to 28 May 2021

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Graph showing 7 day rolling average in Welsh universities

Please note: Due to accuracy & timeliness limitations with the capability of our surveillance systems, distinguishing exact case associations between children over 19, school staff and/or family members is currently not possible. We are looking to develop this with local health protection officers.

What does the situation look like going forward?

Based on the current rates observed with current restrictions:

  • Cases – the probability of incidence greater than 100 per 100,000 remains low for all local authorities. The figure illustrates the probability (between 0 – 100%) of incidence being greater than 100 per 100,000. Source: Imperial College London

Probability of greater than 100 per 100,000 cases by local authority, Wales

13 - 19 June and 20 - 26 June

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Map showing probability of greater than 100 per 100,000 cases by local authority
  • Deaths per day – continue to see small numbers over the next four weeks, although projection is difficult when numbers fall to low levels. Source: Modelled medium term projections, SAGE/SPI-M, 7 June
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Number of deaths per day, Wales
  • Hospitalisations per day - continue to decrease to under 1 per day over the next four weeks. Source: Modelled medium term projections, SAGE/SPI-M, 1 June

Hospitalisations per day, Wales

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Chart showing hospitalisations per day

These projections are based on current trends and will not fully reflect the impact of policy or behavioural changes over the past two to three weeks. The projections include the impact of vaccines, but cannot capture any future increases in transmission resulting from new variants. They are not forecasts or predictions. 

Projecting forwards is difficult when numbers fall to very low levels, therefore SPI-M-O have decided to pause producing medium term projections where this is the case. The small numbers can also introduce apparent inconsistency as regions are aggregated.

What is the situation with arriving travellers

This week has seen another sharp increase in overall arrivals with Green List arrivals accounting for a just under a third of all arrivals

Portugal has seen a large increase in arrivals, higher than both France and Spain who traditionally represent the highest volume of arrivals. Nearly 900 travellers arrived from Portugal in this week. This week has also seen some changes in the traditional flow of travellers due to the Half Term/Bank Holiday period with large numbers across all days and lower drops for midweek travel. This week has seen an increase of around 2% in travellers still awaiting test results at day 10. 

  • There has been an increase of 859 (34%) in the overall arrivals compared to last week. 
  • There have been very few positive cases from Green countries (0.14%).
  • Positive cases from Amber countries remain low (0.9%).
  • Overall, the number of arriving travellers is rising significantly. 
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Charts showing a summary of arriving travellers
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Graph showing travellers by arrival date

Source: Home Office, as at 6 June 2021

Please note that the data provided by the Home Office is derived from Passenger Locator Forms (PLF) which are self-completed by travellers. As such, data may contain inaccuracies. Due to the limitations associated with data capture and legislation, some minor discrepancies may be present in the data.

Mobility data, adherence and UK comparison

Mobility data up to 5 June shows further increases in the last week, with mobility levels in some areas higher than last summer and the highest since early March 2020 compared to a baseline of January-February 2020. It is not possible to determine if mobility is higher/lower than would have been expected prior to the pandemic as data for 2019 or earlier is not published. Note the most recent week also includes changes to mobility over half term and the bank holiday. 

Mobility data by location of trip

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Graph showing mobility data by location of trip

Source: Google

Adherence

The adherence data from IPSOS MORI and Public Health Wales is the same as last week, which reported reductions in some categories since the previous survey wave 4 weeks ago, most notably a large reduction in those making essential trips only and avoiding public transport. Since the previous survey, Wales moved from alert level 4 to level 2 and restrictions on movement have eased. Note self-reported adherence is affected by individuals' understanding of rules and guidance. Source: IPSOS MORI

Results from the Coronavirus (Covid-19) Infection Survey, 30 May to 5 June

Although positivity rates remain low for all four UK countries, positivity rates have increased in recent weeks. The percentage of people testing positive has increased over the last two weeks in Wales to 0.08%. However, the trend is uncertain in the most recent week.

During the most recent period, it is estimated that an average of 2,300 people in Wales had COVID-19 (95% credible interval: 800 to 4,900), equating to around 1 in 1,300 people. This compares to around 1 in 560 people in England, around 1 in 540 people in Scotland, and around 1 in 700 people in Northern Ireland.

Positivity rates (%) across UK countries up to 5 June 2021

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Graph to show positivity rates (%) across UK countries

Source: Office for National Statistics COVID-19 Infection Survey

Key risks and sources

Key risks

Transmissions, incidence and prevalence

Overall transmission is increasing but remains relatively low. 

NHS Capacity

COVID-19 pressure on the NHS remains stabilised at a relatively low level. Some fluctuations are likely to occur, due to low numbers.

Mortality

Remains at a generally low level.

Variants

Additional cases of Delta variant (B.1.617.2, first identified in India) have been detected in Wales and are increasing, although numbers remain low in comparison to other parts of the UK where cases appear to be increasing rapidly. Local intervention will likely be required to prevent uncontrolled growth and wider community transmission in Wales. 

Immunity and vaccines

3.48 million doses of COVID-19 vaccine have been given in Wales. Of the 3.48 million doses given nationally, 2.19 million were first doses and 1.29 million were second doses.

International

Traveller numbers have sharply increased compared to the previous week. Arrivals from Portugal have especially increased following its move to the Amber list. Positive cases from Green and Amber countries remain low. 

Key sources for this update

Technical Advisory Cell brief

COVID infection survey results

Public Health Wales

Hospital occupancy

Higher Education

School attendance

Public Health England VoC Technical Briefing

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