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1 in 214 people in England likely now infected. Historically lower levels come to an end. Precautions now needed in nearly all indoor places.

Covid-19 Risk Assessment: Week Ending 17 August 2025

The long period of historically lower Covid infection levels in England has come to an end. Covid infection levels in England have jumped nearly a fifth in the last week, and the overall Covid risk is just below High. Now is the time for people to start resuming strict precautions if they do not wish to catch Covid.

As of 17 August, around 1 in every 214 people in England were infected. While this is still technically a lower level, and the overall risk remains Moderately High, the upward trend in infection levels is now established. We expect Covid infection levels to continue to rise throughout the autumn and winter, although the pattern of that rise is still unclear.

We believe that this rise is being driven partly by the rise of the new XFG “Stratus” variant. It looks like people who have had Covid before, even recently, are still able to catch this new variant, so it is likely to spread quickly. Summer holiday mixing and travel has also boosted infection levels. The return to work, school, universities, etc in September, coupled with a return to more indoor living, will continue to drive a rise in infection levels as we move into the autumn.

We expect this to be the last week of historically lower Covid infection levels in England. Because levels are increasing fast, and data tends to lag behind events, we are changing our advice this week to a more cautious approach. Our weekly updates will keep you in touch as things change.

BuDS continues to encourage everyone to take the level of Covid and other precautions that feels right for them, bearing in mind their own personal circumstances and the need to protect others. Our role is to give you the information to help you make informed decisions, and we will do so in this post. Remember, precautions against Covid will also help protect against all respiratory viruses including flu, norovirus, bird flu and measles.

RiskPlacesRisk factorsLikely number of infected people on a single visit this weekRisk mitigations (things you can do to protect yourself)
HighBuses, trains, taxis, transit systems like the London Underground, hospitals, GP practices, dentists, vaccination clinics, pharmacies, schools, universities and collegesUsed by very large numbers of people, who are not taking precautions. Typically poorly ventilated.Minimum 4-5, potentially 20+Minimise visits. Wear a PPE respiratory mask (FFP2/3 rated) on every visit. Maximise fresh air ventilation (open windows if possible, etc).
Medium-highBars and clubs, large supermarkets, indoor shopping centres, large office buildings, most cinemas and theatres.  Used by large numbers of people, who are not taking precautions. Typically poorly ventilated.Minimum 3-4, potentially 7+Minimise visits. Wear a PPE respiratory mask (FFP2/3 rated) on every visit. Maximise fresh air ventilation (open windows if possible, etc).
MediumMedium-sized restaurants (200 seats or more), smaller supermarkets, smaller offices, individual larger shopsUsed by medium numbers of people, who are not taking precautions. Typically poorly ventilated.Minimum 1, potentially 3+Minimise visits. Wear a PPE respiratory mask (FFP2/3 rated) on every visit. Maximise fresh air ventilation (open windows if possible, etc).
LowerSmall cafes (around 25 seats), small shops, infrequently used buildings e.g. churches (outside of services), buildings which, at the time of visit, have very few people inside themUsed by small numbers of people, who are not taking precautions.  Can be poorly ventilated.You are statistically unlikely to encounter an infected person on a single visit, although this risk cannot be excluded. After 4 to 8 visits, statistically you are likely to encounter one infected person over all of those visits. Remember, however, especially with rising infection levels, you may well be unlucky and meet a Covid-infected person on your first visit.  Minimise visits. Maximise fresh air ventilation (open windows if possible, etc).   The Covid risk is rising. While statistically the risk remains lower, we encourage a cautious approach to taking risks. Not wearing a PPE respiratory mask (FFP2/3 rated) should be exceptional when the risk is clearly lower, for example in a nearly empty building.
LowOutdoors (except when in a dense crowd)The moving fresh air makes transmission of Covid from one person to another unlikely, except where two people are very close together.The number of infected people is less relevant because the risk of transmission of Covid from one person to another is unlikely.Avoid very close contact (under 1m) with potentially infected people. For complete peace of mind, remain 2m from potentially infected people.
Covid, flu, norovirus, bird flu and measles are all airborne. An infected person in an unventilated indoor place creates an invisible cloud of virus which hangs in the air like smoke for you to breathe in. The virus cloud can be dispersed and made less harmful, or harmless, using fresh air ventilation – e.g. opening a window or door. Fresh air is the enemy of Covid and the friend of Covid-cautious people. Another way to deal with an indoor cloud of Covid is to use a HEPA filter. These filters suck in the air, remove the viruses, and blow out virus-free clean air. HEPA filters are essential when an indoor space cannot be ventilated with fresh air, e.g. no (or little) opening windows. PPE respiratory masks filter viruses out of the air you personally breathe, if they are fitted and used correctly. PPE masks are the last line of defence against airborne viruses. As we explain in the table above, Covid-cautious people can use one or a combination of these precautions to help make indoor spaces safer for them.

Covid is not just dangerous for clinically-vulnerable people. The virus has been proven to have an adverse health impact on most people who catch Covid. No-one should be relaxed about catching Covid.

This is BuDS’ 239th Covid risk assessment since the beginning of the pandemic, and we are still the only organisation publishing free risk data for disabled and clinically vulnerable people. We will update you on the situation again next week.

If you’d like to get our weekly Covid risk assessments direct to your email inbox, completely free of charge, you can subscribe here: https://budscovidinfo.substack.com/

To understand more about our Covid risk levels and what they mean, use this link: https://buds.org.uk/covid-19-risk-levels-in-bucks/

For more Covid information and help, please contact BuDS and we will be happy to help.