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originally posted by: Oppenheimer67
originally posted by: Rich Z
originally posted by: Oppenheimer67
Evidence to suggest tests may give false negatives 50-70% of the time
www.yicai.com...
"Not all patients can detect nucleic acid positives. For patients who are really infected with the new type of coronavirus, there are only The positive rate is 30% to 50%."
Excuse the dodgy translation
Which likely means the only truly accurate test is the subject coming out clean from the quarantine period. And I'm not really sure anyone knows exactly how long that needs to be.
Then for those that fail this test, the next test is to live long enough to be considered as "recovered".
But does "recovered" mean "permanently non-infectious"? I don't think anyone really knows the absolute answer to that one neither.
Lovely.....
IMHO.
well based on this, you'd need to test someone 13 times to be 99% sure they are not infected. If my maths is correct. I really need sleep. I do believe China is working on alternative tests though. This was a while ago though so they hopefully have those now.
Your point on the meaning of recovered is a good one too. The idea is that you have built up enough immunity so that the virus can longer survive in your body. i.e. you are completely clear of the virus and cannot be reinfected. You may be left with other things such as lung damage, possibly other organ damage, but you are at least considered recovered from the virus.
With things like Ebola hiding in very remote locations in your body though, you can test clear, only to re-infect yourself much much later.
Immunity may last 6 months until your body essentially forgets how to be immune to this particular virus, but the virus may have mutated by then anyway so although you may have some residual immunity, it may not be as effective against the mutated virus. Hopefully this one would be less severe though.
Lot of "hopefully"s in there.
originally posted by: Oppenheimer67
originally posted by: Rich Z
originally posted by: Oppenheimer67
Evidence to suggest tests may give false negatives 50-70% of the time
www.yicai.com...
"Not all patients can detect nucleic acid positives. For patients who are really infected with the new type of coronavirus, there are only The positive rate is 30% to 50%."
Excuse the dodgy translation
Which likely means the only truly accurate test is the subject coming out clean from the quarantine period. And I'm not really sure anyone knows exactly how long that needs to be.
Then for those that fail this test, the next test is to live long enough to be considered as "recovered".
But does "recovered" mean "permanently non-infectious"? I don't think anyone really knows the absolute answer to that one neither.
Lovely.....
IMHO.
well based on this, you'd need to test someone 13 times to be 99% sure they are not infected. If my maths is correct. I really need sleep. I do believe China is working on alternative tests though. This was a while ago though so they hopefully have those now.
Your point on the meaning of recovered is a good one too. The idea is that you have built up enough immunity so that the virus can longer survive in your body. i.e. you are completely clear of the virus and cannot be reinfected. You may be left with other things such as lung damage, possibly other organ damage, but you are at least considered recovered from the virus.
With things like Ebola hiding in very remote locations in your body though, you can test clear, only to re-infect yourself much much later.
Immunity may last 6 months until your body essentially forgets how to be immune to this particular virus, but the virus may have mutated by then anyway so although you may have some residual immunity, it may not be as effective against the mutated virus. Hopefully this one would be less severe though.
Lot of "hopefully"s in there.
originally posted by: Violater1
a reply to: Rich Z
Coronavirus outbreak: Death toll surpasses total from SARS outbreak
Coronavirus deaths: Another 89 people died in China's Hubei province on Saturday, bringing the total death toll around the world to at least 813. The number of confirmed cases has risen to at least 27,100 in Hubei province alone, with the global number of infected now at more than 37,000 -- the vast majority in mainland China.
www.cnn.com...
originally posted by: Rich Z
originally posted by: Oppenheimer67
originally posted by: Rich Z
originally posted by: Oppenheimer67
Evidence to suggest tests may give false negatives 50-70% of the time
www.yicai.com...
"Not all patients can detect nucleic acid positives. For patients who are really infected with the new type of coronavirus, there are only The positive rate is 30% to 50%."
Excuse the dodgy translation
Sorry the short answer to that is I don't know. To hazard a guess, I'd say your body can fight off and remove some viruses, but some hang on. I imagine some find a special place to hide, like Ebola, and some as you say are just at equilibrium, waiting for you to get stressed and then they take advantage.
Which likely means the only truly accurate test is the subject coming out clean from the quarantine period. And I'm not really sure anyone knows exactly how long that needs to be.
Then for those that fail this test, the next test is to live long enough to be considered as "recovered".
But does "recovered" mean "permanently non-infectious"? I don't think anyone really knows the absolute answer to that one neither.
Lovely.....
IMHO.
well based on this, you'd need to test someone 13 times to be 99% sure they are not infected. If my maths is correct. I really need sleep. I do believe China is working on alternative tests though. This was a while ago though so they hopefully have those now.
Your point on the meaning of recovered is a good one too. The idea is that you have built up enough immunity so that the virus can longer survive in your body. i.e. you are completely clear of the virus and cannot be reinfected. You may be left with other things such as lung damage, possibly other organ damage, but you are at least considered recovered from the virus.
With things like Ebola hiding in very remote locations in your body though, you can test clear, only to re-infect yourself much much later.
Immunity may last 6 months until your body essentially forgets how to be immune to this particular virus, but the virus may have mutated by then anyway so although you may have some residual immunity, it may not be as effective against the mutated virus. Hopefully this one would be less severe though.
Lot of "hopefully"s in there.
My medical knowledge is pretty scant, but I thought that viruses (virii?) were a forever thing in the body. You are never really cured of them, your body has just adapted to them and maintains a truce with them. Something causing your immune system to go on vacation, and then the virus can start to get the upper hand again.
So basically every virus you have ever caught is still with you, somewhere in your body.
So am I misunderstanding how this works?
originally posted by: ketsuko
a reply to: texasgirl
Seriously, study the Spanish Flu and I think you'll have a much better idea. It's plenty spooky and seems to still be a much closer analog. Plus, it has the advantage of being fact and history, not fiction. There are a lot of parallels to what we're seeing.
I know; I know. It's the flu, so it's not some sexy mystery virus, but believe me, when flu picks up the right mutations and is a novel strain, it does things you wouldn't believe it could. The doctors back then didn't believe it was the flu.
The number of confirmed cases has risen to at least 27,100 in Hubei province alone,
originally posted by: toysforadults
a reply to: ketsuko
this isn't over yet, there's a coincidental timing of this event with the saturn pluto conjunction
this is a big deal and there's more to come..
originally posted by: Rich Z
Is anyone else monitoring the status of this in the USA and thinking, "Gee, it's been at only 12 confirmed cases for days now, how can that be?"