ls99
Give me a museum and I'll fill it. (Picasso) Give me a forum ...
- Joined
- May 2, 2008
- Messages
- 6,517
I'm confused. Maybe this will help:
Finally a good explanation of baseball.
I'm confused. Maybe this will help:
The results overall are promising, Dr. Marson added. “There are multiple tests that have specificities greater than 95 percent.”
Rapid antibody tests are generally used to get a simple yes-no result, but the team assigned the positive results — which appear as bands on a test strip — a score from zero to six. They trained readers to interpret those results, and found their decisions often agreed and were supported by the more quantitative Elisa tests.
“If you train the readers well, they can start to be reliable,” Dr. Marson said of rapid tests. “That is critical to understand if these tests could ever be deployed.”
The team at Mass General set a higher bar for specificity; they considered a score of one for the intensity of a band to be a negative result, rather than a score of zero.
Perhaps because they eliminated the fainter bands — the ones most likely to be erroneous — their estimate of specificity for BioMedomics, the one test that was evaluated by both teams, was more than 99 percent, compared with the San Francisco team’s estimate of 87 percent.
There was some promise in the NYT article if you keep reading. We'll get there, but it's going to be two steps forward, one step back and it's going to take longer than any of us want or expect. We're all going to have to be patient and discerning re: sources (considerably more bad info than solid), easier said than done (self included).
The World Health Organization has pushed back against the theory that individuals can only catch the coronavirus once, as well as proposals for reopening society that are based on this supposed immunity.
In a scientific brief dated Friday, the United Nations agency said the idea that one-time infection can lead to immunity remains unproven and is thus unreliable as a foundation for the next phase of the world's response to the pandemic.
I found this depressing. https://www.npr.org/sections/corona...covered-covid-19-patients-are-immune-who-says
There is an interesting article in the NY Times, comparing the accuracy of various antibody tests out there, titled "Coronavirus Antibody Tests: Can You Trust the Results?"
https://www.nytimes.com/2020/04/24/health/coronavirus-antibody-tests.html
Here are a few quotes:
A team of scientists worked around the clock to evaluate 14 antibody tests. A few worked as advertised. Most did not.
Interesting - I looked at the study and don't see where they included Abbott's anti-body test in the results. So I wonder if this was using tests available as of some time (in the past)? I didn't spend a lot of time digging, just asking.
p.s. According to Abbott, their anti-body test has a sensitivity of 100% and a selectivity of 99.5% which is pretty darn spectacular. It was announced April 15, 2020.
GA,SC, FL, TN. All taking steps to open up. NY just opened golf courses and marinas. A little at a time.
I found this depressing. https://www.npr.org/sections/corona...covered-covid-19-patients-are-immune-who-says
Still, with all the current problems, two things are clear.
The first: Whether the study was conducted in California or Denmark, in the Netherlands or Germany, most have shown the virus has not yet infected a big portion of the screened population.
“In general I think things have been pretty consistent. It’s only in the really hard-hit places that we’re seeing anything above a single-digit number,” said Dean. “The harder hit places have higher seroprevalence, but even the hard hit places don’t seem to have crazy numbers. Certainly not at the herd immunity level.”
That leads us to the second thing: The world still has no idea how to interpret the import of any of these studies.
All the reports I've seen state the WHO isn't saying antibodies aren't effective, they're saying it hasn't yet been confirmed for Covid-19 yet - IOW we don't know yet.I found this depressing. https://www.npr.org/sections/corona...covered-covid-19-patients-are-immune-who-says
Yes, it says it hasn't yet been confirmed, but some governments are moving forward on the premise that it has. For me, that is / was a big hope given no vaccine or treatment at this time.All the reports I've seen state the WHO isn't saying antibodies aren't effective, they're saying it hasn't yet been confirmed for Covid-19 yet - IOW we don't know yet.
Admittedly it's just one example, but one case of reinfection, turned out to be the patient had developed antibodies but hadn't yet kicked the virus. It wasn't a reinfection, it was the original infection lingering when symptoms were subsiding. FWIW
Another look at what WHO really said. It’s not what was reported by many media sites.
https://reason.com/2020/04/26/world-health-organization-tweet-coronavirus-covid-19-antibodies/
At this point, it makes me want to have the mask from the movie, Avatar. If I have one of those, I can go anywhere I want.
One thing I do not see mentioned in US, that China is doing, which is using big disinfecting machines. In many large gathering such as entrance of factories, workers have to go thru a tunnel kind of disinfecting streams coming in all directions to each person. Some schools and large malls also have these:
I see that I posted in the wrong thread...Interesting - I looked at the study and don't see where they included Abbott's anti-body test in the results. So I wonder if this was using tests available as of some time (in the past)? I didn't spend a lot of time digging, just asking.
p.s. According to Abbott, their anti-body test has a sensitivity of 100% and a selectivity of 99.5% which is pretty darn spectacular. It was announced April 15, 2020.
I haven’t followed Ohio, but I’ve heard DeWine has gotten good marks on handling the virus response. The steps above make sense on the face of it, way more than GA.Here is the Ohio plan for reopening some parts of the economy:
May 1st - Health procedures that don't require an overnight hospital stay, all dental and veterinary procedures
May 4th - Manufacturing, construction, distribution, general offices
May 12th - Consumer, retail, and services
New protocols are detailed at the link:
Reopening Ohio: Gov. DeWine gives dates, protocols for reopening businesses beginning May 1
Businesses that will remain closed include restaurant dining rooms, salons, gyms, entertainment venues, and others that are detailed at the following link:
Continued Business Closures
Reopening more businesses will depend on how it goes with all of the above being open after a few weeks. The press conference is still going on. We're still going to be under a stay-at-home order, although we'll soon have more places to go.