It's over 3 weeks since schools reopened in England after summer - what's happening in the #COVID19 data?
I'll be honest with you, it's a mess
I've got no idea what's going on - the data is a bit baffling
Lets take a look... 🧵
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The headlines are mostly about PHE cases data
These have been increasing in most age groups since early August, with a slight flattening after reopening of schools, now rocketing in 10 - 15yo
Interestingly, sloping downwards in the <5s
Maybe a school effect on cases?
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We know the start of school based testing does botch the trends somewhat, which was always going to be difficult to disentangle
In contrast to case numbers, positivity is actually tanking, especially in people reporting symptoms
Increases in Rhinovirus etc boosting testing?
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More confusingly, the ONS paints a different picture again (although a week behind)
Rates didn't fall much in primary age children over summer at all, and are maybe up, or maybe flat?
Secondary school age dropped for summer and bumpy, but not going up since schools opened
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But the plot thickens further
Hospitalisations (which have been least labile to testing bias) *FELL* ~25% after schools opened (?recent uptick)
We don't have the disaggregation to see how this is influenced by the >15s rates dropping, but shouldn't be enough to explain it
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The concern has been from the increase in parent aged adults cases matching increases in those of school aged children, but increase office mixing and testing given circulating cold viruses could interfere?
The data is not conclusive
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So there you have it, clear as mud
We saw cases peaked very quickly in this age in Scotland, and with ~50% estimated to have already been infected, we may see the same in England
ONS will be interesting over the next few weeks
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Loads of people will now have heard of RSV for the first time
Here is a quick thread on the disease it causes (bronchiolitis) and why we DONT use salbutamol inhalers/nebulisers to treat it - they can even make it worse!
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Bronchiolitis does what is says on the tin
It’s infection with a virus (usually RSV, but can be others) affecting the small airways (“bronchioles”) causing inflammation (“itis”)
It causes wheezing, coughing, and difficulty breathing
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Usually it affects babies <1y of age (although in the US definitions are a bit different…) and is seasonal, coming in waves every winter
It is the most common cause of hospitalisation of children, usually for breathing support, extra oxygen, or help feeding
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