So USA saw a sharp increase for 3-4 weeks followed by a subsequent decrease in detections.
Peak was similar to 2019 season however began in May (c.f. normal September-October).
Increase sustained until early September 2021, a longer peak than the previous year.
Canada has had an increase in number of RSV positive tests than usual for the same time period (grey dash is 6 year average)
This is in keeping with decreased immunity (children not exposed in 2020) along with the current increase in social mixing.
Now good evidence to back up the worldwide reports of out-of-season surges of bronchiolitis.
This should cause significant reflection in the UK paediatric community as rapid service response may be needed at a time when staff in a traditional summer 'down time'
/thread
In November 2020 the Western Australian surveillance programme demonstrated a rapid rise in respiratory syncytial virus (RSV) cases.
RSV causes bronchiolitis, a common respiratory infection, in children less than one year old.
This was interesting as case numbers were not only occurring in the summer (unusual as it is normally a winter illness) but also at a much greater frequency (up to double normal seasonal levels)
The reasons for this aren't clear but was thought to be a rebound effect of lockdown
Do my level best not to propagate mis-information - which this from @bbc5live definitely is- but now this tweet has had over 1 million views I think important all in child health make absolutely clear we are not seeing a nationwide wave of #COVID19 induced illness in children.
And apologies to Laura Duffel as this is aimed directly at @bbc5live who have placed no context on this statement, I suspect knowing it would be likely to raise eyebrows.
Exactly everything we don’t need from journalism at present.
And to be crystal clear, the tweet was worded as to be technically correct. This is what frustrates me most.
The lack of a second, or linked tweet, highlighting the correct context demonstrates to me this was being deliberately provocative.