Update on Covid providing information on prevalence and hospital admissions for England and its regions. This post is best viewed using the browser or Substack app.
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Covid Situation Report: Aug 8, 2024
Update on Covid providing information on prevalence and hospital admissions for England and its regions. This post is best viewed using the browser or Substack app.
Bob Hawkins
Aug 08, 2024
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Introduction.
This report is part of a weekly series that summarises the Covid situation in England and its regions.
A reminder that not all of the data previously included in the situation update is now available on a weekly basis. Where relevant, changes to the content and data sources have been noted.
This week the data published for England only covers case rates from the UKHSA Covid dashboard and daily Covid hospital information for July. As data for England is limited, I have also included the latest available data for Scotland, Wales and Northern Ireland. Finally, I summarise key points from the UKHSA statement on the Autumn 2024 Booster Vaccination published earlier this week.
Summary.
Recent data for England, Scotland, Wales, and Northern Ireland show a continuing decline in Covid levels, indicating the end of the latest wave.
Over the past week, daily case rates in England have decreased again, signalling that the July wave is likely over. Case rates have dropped in nearly all regions except London, where they have remained stable.
In Scotland, hospital admissions and the number of beds occupied by Covid patients have been falling since the Summer peak, which was higher than the levels seen in Winter 2023/24. Although Covid levels in wastewater have significantly decreased, they remain relatively high.
Wales has seen a continued decrease in Covid cases and hospital admissions, indicating the likely end of the recent wave.
Northern Ireland is experiencing a similar trend, with hospital admissions for community-acquired Covid consistently declining from the latest peak.
Although the data indicates that this recent wave is almost certainly over, this is an important reminder that Covid is not presently a seasonal disease and may never become one. As such, we should anticipate potential future waves with the emergence of new variants and as immunity levels diminish.
With that in mind, the UK Health Security Agency has released the eligibility details for the Autumn 2024 booster campaign, which largely follows the criteria of previous autumn campaigns.
As always, it’s important to remember that the risk of hospitalisation from Covid infection increases significantly with age and for those immunocompromised. Also Long Covid remains a risk for all as shown by the recent
ONS report. Therefore, it is prudent to take appropriate measures such as self-isolating when experiencing Covid symptoms and enhancing ventilation or wearing masks whenever possible.
For those who are interested, I recently published an article covering the ONS data on Long Covid in more detail which can be found
here. Also a comprehensive review of the evidence in support of wearing masks is available
here.
Status of main respiratory diseases in England.
The UKHSA National influenza and COVID-19 surveillance report has moved to a condensed summer report and is now released every two weeks. Consequently, there is no updated information on Covid test positivity or weekly hospital admissions available to report. The next update will be published on Thursday, August 15.
Covid case rates in England
The UKHSA Covid dashboard continues to publish daily case rates for England on a weekly basis. As the majority of testing now occurs in hospitals or under medical supervision, these rates should closely align with hospital admissions. However, a comparison of daily case rates and daily admissions shows that this is not the case.
Appendix 1 indicates that although Covid case rates typically reflect the pattern of hospital admissions, there is a notable discrepancy in the magnitude of changes, with admissions experiencing a more pronounced fluctuation than case rates. Therefore, while case rates are helpful in signalling the general trend of Covid within the population, they do not precisely represent the degree of change.
The first chart in this section shows daily case rate per 100,000 individuals.
The chart indicates that Covid case rates have peaked and have fallen for the past two weeks indicating that the ‘summer’ wave is likely over. Nonetheless, current case rates remain higher than those observed during the peak in May. It is important to note, as detailed above and in Appendix 1, that comparisons with the peak in Winter 2023 are not recommended.
The next panel chart in this section shows Covid rates for the regions of England. Hover your cursor over one of the chart lines to display the admission rates for all regions.
The panel charts indicate that daily case rates are declining in nearly all regions, except for London, where the rates have plateaued. Despite a recent decrease, the North East region still reports a case rate that is substantially higher than any other area.
Daily Covid hospital admissions and bed occupancy.
Starting April 2024, NHS England moved from a weekly to a monthly publication schedule for daily Covid data in hospitals. This section provides an overview of the most recent data, released on August 8, which covered the month of July. As a result, it does not include the most recent weeks data used in the prior section.
The following chart illustrates the daily number of Covid hospital admissions, including patients diagnosed with Covid after admission, for the year 2024 up to the end of July, in comparison with the complete data for 2023.
The charts show that hospital admissions in Jun/Jul 2024 have increased above the equivalent levels seen in 2023. However, admissions in the last week of July 2024 are falling indicating a likely reduction in Covid levels in the community.
The next chart shows the daily number of beds occupied by Covid patients in 2024 compared with 2023. The number of beds occupied by Covid patients includes both those being treated primarily for Covid and those ‘with’ Covid as a secondary infection. As a guide, about 25% of patients occupying these beds were being treated primarily for Covid in March 2024.
Reassuringly, the data on hospital bed occupancy by Covid patients mirrors the pattern of Covid hospital admissions. This confirms the slight decrease in Covid levels see at the end of July.
In summary, the daily Covid hospital admissions and occupied bed data confirms the falls seen seen last week in the UKHSA weekly admissions data and the daily case rates presented in the previous section.
Scotland weekly hospital admissions and bed occupancy
Scotland continues to publish weekly data on hospital admissions and bed occupancy for Covid as well as waste water monitoring data. The dashboard for Scotland’s data can be accessed
here.
The following panel chart shows the most recent data for weekly Covid hospital admissions up to Jul 28, depicted in blue, together with the number of beds occupied by Covid patients up to Aug 4, shown in orange. The number of occupied beds represent patients being treated
for Covid as well as those being treated
with Covid.
The charts shows that the recent 'summer' Covid wave in Scotland has led to more hospital admissions and a greater number of beds occupied by Covid patients compared to the 'winter' wave. This contrasts with England, where 'summer' hospital admissions did not surpass those seen in 'winter'.
However, in the past three weeks Covid admissions and bed occupancy in Scotland has fallen quite quickly and this ‘summer’ wave appears to be over.
Scotland is now the only home nation that is monitoring Covid levels using wastewater sampling and the following chart shows the latest levels reported.
The data indicates that the Covid levels in wastewater detected during the recent 'summer' wave were higher than those observed in the 'winter' wave. This is consistent with the trend seen in the hospital data. Moreover, the latest wastewater data for week ending Jul 30 shows that levels are falling which again follows the trend seen in the hospital data.
Interestingly, the very high wastewater levels seen in summer 2023 did not correlate with very high hospital admissions. It’s difficult to say why this was the case but could be due to wastewater testing being less sensitive for the most recent variants.
Wales Covid cases and hospital admissions.
Public Health Wales publishes a weekly Covid dashboard, presenting key Covid hospital indicators for the preceding 90 days. This dashboard can be found
here. Additionally, data regarding Covid cases detected through testing in hospitals and other medical facilities are released every week.
The following charts shows the latest data for the weekly (7 day rolling sum) number of cases reported.
The chart shows that Covid cases in Wales are continuing to falling but remain high. This follows a surge in cases that surpassed the 'winter' wave and reached a peak that was the highest in over a year.
Data regarding Covid hospital admissions in Wales is published for the most recent 90-day period, and the following chart gives the current trend.
Hospital admissions for Covid increased in June, but have now fallen for the past four weeks, mirroring the trend observed in Covid cases, and confirming that the ‘summer’ wave is likely to be over.
Northern Ireland hospital admissions
Public Health Northern Ireland publishes a weekly COVID-19 Epidemiological Bulletin that provides data on Covid cases, hospital admissions and occupancy and care home incidents. The full report, published every Thursday, can be found
here.
The chart below presents the weekly count of Covid hospital admissions for cases where the infection was contracted in the community, thereby excluding patients who contracted Covid while in hospital. Note that hospital admissions data for the other home nations do include patients who were infected in hospital so should not be compared to the data for Northern Ireland.
The chart shows a similar pattern to that seen in Scotland Wales, with the 'summer' wave's peak nearly reaching the heights of the 'winter' wave. However, a decline in admissions over the past four weeks suggests that the 'summer' wave is over.
Autumn 2024 Booster Vaccination Campaign
This week, the Joint Committee on Vaccination and Immunisation (JCVI), the UK government's independent advisory body on vaccines, released its advice for the Autumn 2024 Covid Booster vaccination campaign. This advice was considered by the UK Health Security Agency (UKHSA) who extended the JCVI list of those eligible to include other at risk groups.
The JCVI advice, which can be accessed
here, is grounded in a 'bespoke' cost effectiveness analysis, addressing both eligibility and the recommended vaccine products. As in their previous analyses, JCVI did not take Long Covid into account because they found that:
“There remains considerable uncertainty regarding the impact of additional vaccine doses, beyond primary vaccination, on the risk, progression and/or outcome of post-COVID syndromes.”
The JCVI cost effectiveness assessment for Autumn 2024 found that vaccination was likely to meet acceptable cost effectiveness criteria when offered to:
- all adults aged 70 years and over;
- adults aged 65 years and over in a clinical risk group (excluding immunosuppression); and
- immunosuppressed individuals aged 15 years and over
It is important to recognise that the JCVI's cost effectiveness analysis takes into account only age and clinical risk groups, and does not consider occupational risks or deployment challenges. As a result, the UKHSA has augmented the JCVI's advice and the final recommendations can be found
here.
The complete list of individuals eligible for the Autumn 2024 booster published by the UKHSA across all four nations of the UK are:
- adults aged 65 years and over;
- residents in a care home for older adults;
- individuals aged 6 months to 64 years in a clinical risk group;
- frontline NHS and social care workers: and
- those working in care homes for older people.
The only difference from the Autumn 2023 booster campaign is that “
persons aged 12 to 64 years who are household contacts of people with immunosuppression” are no longer eligible.
The UKHSA article acknowledges the difficulty in identifying individuals in the clinically at risk group, including those who are immunosuppressed, and offers additional guidance on this matter.
In conclusion
Although the amount of data currently being published has decreased, the limited information available for England suggests that although Covid levels are still higher than those seen in may they are now falling indicating an end to the ‘summer’ wave.
Data from Scotland, Wales, and Northern Ireland suggest that the recent 'summer' wave of Covid saw higher levels than the 'winter' wave. Nevertheless, the most recent figures indicate that this surge has probably ended.
Lastly, the UK Health Security Agency has released the eligibility details for the Autumn 2024 booster campaign, which largely follows the criteria of previous autumn campaigns.
As always, if you have any comments on this Covid Situation Report or suggestions for topics to cover, please post a message below.
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Appendix 1. How reliable are Daily Covid Case Rates?
The UKHSA Covid dashboard continues to publish daily case rates for England on a weekly basis. As the majority of testing now occurs in hospitals or under medical supervision, these rates should be closely aligned with hospital admissions and the positivity rate of tests.
The first panel chart in this section tests that assumption by comparing the daily case rate per 100,000 individuals, shown in red, with daily hospital admissions for Covid reported by NHS England, depicted in blue.
The chart shows that while Covid case rates generally mirror the pattern of Covid hospital admissions, there is a significant disparity in the scale of changes. The grey shaded areas on each chart highlights the difference between the peak of the winter wave and the recent peak in June. Case rates experienced a 64% decrease, whereas hospital admissions saw a reduction of only 32% between the winter and June peaks.
In conclusion, although case rates are useful for indicating the overall trend of Covid in the population, they do not accurately reflect the extent of change. The likely reason for this is that testing levels have decreased by about a half since January.