Interesting. If London's seroprevalence is 17%, with a population of 8.9 million and 7,758 #COVID19 deaths today implies an IFR in London of ~0.51%https://twitter.com/onisillos/status/1263541718407876610 …
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
I managed to miss/forget the NYC data. Maybe the London figure is plausible then?
I think it's certainly plausible, well within the bounds of most estimates. It might be a little high, but I'd be surprised (given the number of deaths) if London had lower than 10% seroprevalence (which would imply 0.9% IFR)
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.