I want to give a shout out to exposure notifications, the API Apple and Google created at the beginning of the pandemic. Well scoped. In close collaboration with domain experts. Privacy protecting. Measurably helped, maybe not as much as hoped, but still. And now being responsibly shut down, as promised.

We should praise folks when tech is done right. I want to see more of this responsible deployment of tech.

@ben Ben, aren't there other communicable diseases that we could prevent with this technique, though?
@evan my sense is it's most useful for emerging diseases or for diseases that have significant asymptomatic transmission. Plus you need a robust testing infrastructure, cause self reporting is weak and leads to false signals. So... Maybe? But i like that they're using it conservatively.

@ben @evan The ZOE project in the UK shows that self reported tests still provide good data. The UK NHS app was altered late in the day to allow self reporting of OTC LFTs.

What I'd really like to understand is why the Google-Apple API was limited to one regional health authority. And separate but related, what the server side component is. It looks from the outside like we could have had a competitive marketplace for decentralised UI apps all interoperating via the API. But maybe not.

@ben @evan Mainly it seems really sad that worldwide, the API is being abandoned, when #covidisnotover

And finally, what potential is there for the same code to be used for other highly infectious (airborne) diseases? Like Flu, RSV, Norovirus.

@jbond @evan i guess I'm not bought into the idea that there would be good enough signal to noise ratio through self reporting of diseases where we don't do a ton of real diagnostic testing. Who gets a flu test? Most people just say they have the flu when they feel crappy.

@ben @jbond @evan

Waste water monitoring is a data provider, could be even greater. It is privacy respecting. Measurable data.

The biggest problem is what to look for.

Scientists recently discovered thousands of "new viruses" -- thousands, in baby poop.

The discoverers are calling it a "virome" after the popularization of biome (see yogurt ads).

Many of the found viruses are recognizable, the majority are bacteriophages.

Astounding enough, but its taken too many decades to notice.

@kevinrns @ben @evan I believe the ONS covid survey in the UK did use waste water monitoring as one of it's inputs. But that survey has been closed down.

And of course there's plenty of science still to be done on all the weird stuff in the biological margins.

Thousands of unknown viruses discovered in baby poo – why this is not necessarily a bad thing

Babies guts found to have ten times as many viral species as bacterial species.

The Conversation