Go back
Massive antibody testing in NY to start immediately

Massive antibody testing in NY to start immediately

Debates


Cuomo just announced it.

We're going to get a big ol' chunk of data on real COVID rates some time next week.


According to my tracking of NYC numbers, only 78 hospitalizations today.


@eladar said
According to my tracking of NYC numbers, only 78 hospitalizations today.
Extremely unlikely. That’s probably just not yet compiled data.

1 edit

@sh76

It has the past 11 days of diagnosed cases. Tomorrow I will have the official new by the city.


@eladar said
@sh76

It has the past 11 days of diagnosed cases. Tomorrow I will have the official new by the city.
The city data lags by a few days. I think there’s even a disclaimer not to rely on recent data.


@sh76 said
The city data lags by a few days. I think there’s even a disclaimer not to rely on recent data.
Do you want an explanation of what they are doing or are you satisfied with your present understanding?


@eladar said
Do you want an explanation of what they are doing or are you satisfied with your present understanding?
I don’t look at NYC data. I look at the state data, of which NYC is the lion’s share anyway. I’m perfectly content to rely on Cuomo’s PowerPoints to know what’s going on in NY. He’s likely to have much better data than the City anyway.


@sh76 said
Cuomo just announced it.

We're going to get a big ol' chunk of data on real COVID rates some time next week.
Public Health England attempted to validate a large collection of this type of test and found that they were all useless. Have these tests been validated?


@sh76 said
I don’t look at NYC data. I look at the state data, of which NYC is the lion’s share anyway. I’m perfectly content to rely on Cuomo’s PowerPoints to know what’s going on in NY. He’s likely to have much better data than the City anyway.
Cuomo averages the last three days. It means his numbers will be a bit larger than what is actually happening if the numbers are in the decline.

Vote Up
Vote Down

@eladar said
Cuomo averages the last three days. It means his numbers will be a bit larger than what is actually happening if the numbers are in the decline.
He presents both.


@deepthought said
Public Health England attempted to validate a large collection of this type of test and found that they were all useless. Have these tests been validated?
What would you consider validation?


@sh76 said
He presents both.
I thought you said 3 day running averages.


@eladar said
I thought you said 3 day running averages.
He shows both daily and 3 day average totals.


@sh76 said
What would you consider validation?
On some of the tests Public Health England looked for the presence of anti-bodies in blood samples taken last year which could not possibly have anti-bodies to SARS-CoV-2 and the tests returned a positive result. They tested people who had previously tested positive for the presence of the virus and got negative results. Which means that the tests lacked both specificity and sensitivity. Validating tests means looking to see if they get the right results in cases where you know the results with some acceptable rate of error.

The BBC article below mentions that Public Health England has not found a test they regard as adequate and talks about the problems with what anti-body tests actually demonstrate.

https://www.bbc.co.uk/news/uk-52335210


@deepthought said
On some of the tests Public Health England looked for the presence of anti-bodies in blood samples taken last year which could not possibly have anti-bodies to SARS-CoV-2 and the tests returned a positive result. They tested people who had previously tested positive for the presence of the virus and got negative results. Which means that the tests lacked both specificit ...[text shortened]... e problems with what anti-body tests actually demonstrate.

https://www.bbc.co.uk/news/uk-52335210
It’s really a question of what you’re looking to do. If you’re looking to declare a person safe, then sure, precision is critical. But if you’re looking to measure prevalence the. 80 or 90% accuracy will do.