5 ms·

Not exactly. Some hundreds of patients were thought to have gotten rid of the virus during hospital stay and treatment and sent home after confirming through R

by tpnCC 6y ago

Not exactly. Some hundreds of patients were thought to have gotten rid of the virus during hospital stay and treatment and sent home after confirming through RT-PCR tests. But they were found to be covid+ve afterwards. Studies indicated that the +ve tests were 'likely' from the genetic material that lingered from the first infection and not from re-infection. https://www.livescience.com/coronavirus-reinfections-were-false-positives.html https://www.livescience.com/coronavirus-reinfections-were-fa... However, they do not declare that you cannot get re-infected two months down the line or two years down the line. We don't have that information about immunity yet.

steveeq1 6y ago
Yes, but the great bulk of evidence pretty much that you won't reinfect once you get it.
- ztjio 6y ago
  That is utter nonsense, that evidence can't exist with out the time having passed to gather it.
  - deleted 6y ago
    [deleted]
- tpnCC 6y ago
  "The great bulk of evidence' in this situation would mean the data on the duration of presence of Neutralizing antibodies in the blood stream of people who got rid of the virus. But this data is not there yet,as I said before. Scientists are currently working to figure out how long the antibodies stay in the body and if they are potent enough to fight re-infections. There is 'no great bulk of evidence' yet. Unless I'm wrong, and I hope I am. https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(20)30985-5/fulltext https://www.thelancet.com/journals/lancet/article/PIIS0140-6... "For any country contemplating these issues, another crucial question is how solid is the assumption that antibodies to SARS-CoV-2 spike protein equate to functional protection?Furthermore, if presence of these antibodies is protective, how can it be decided what proportion of the population requires these antibodies to mitigate subsequent waves of cases of COVID-19?" "Furthermore, studies in COVID-19 show that 10–20% of symptomatically infected people have little or no detectable antibody." We need more data, which I understand scientists all over the world are working relentlessly to deliver, to believe that 'you won't reinfect once you get it'
  - steveeq1 6y ago
    South Korea has studies that show re-infection after you get it won't happen in any meaningful way.
    - seppin 6y ago
      They'd made those conclusions in < 3 months? What is your source?
- seppin 6y ago
  Most antibodies to viruses don't last forever, the question is not if you can get COVID19 twice (you almost surely can) but how long in-between are you protected. And the evidence is unclear, and in some cases worrying: https://www.independent.co.uk/news/world/asia/coronavirus-japan-woman-tests-positive-twice-osaka-olympics-china-a9362421.html https://www.independent.co.uk/news/world/asia/coronavirus-ja...
  - 100ideas 6y ago
    As @tpnCC and @seppin said, there is significant clinical & scientific uncertainty about covid19 antibody response and duration, partly because there hasn't been enough time to collect the relevant data (for covid19) and partly because of prior resarch indicating reduced human antibody response to SARS. Lower in this thread I commented about a 2011 resarch paper that demonstrated anti-SARS antibody levels fell by half 2 years postinfection and were undetectable 6 years postinfection in 21 of 23 SARS patients tested. see this chart https://www.jimmunol.org/content/186/12/7264.long#sec-7 https://www.jimmunol.org/content/186/12/7264.long#sec-7
    - seppin 6y ago
      If those SARS numbers are in the same vein as what is true for COVID19, the only answer is a vaccine. Otherwise our current state of affairs is the new normal for the foreseeable future.
      - svd4anything 6y ago
        I would also argue vaccine is not likely for many related reasons.
        seppin 6y ago
        In that case COVID19 will play out like the 1918 flu, it will hit in waves that only mass quarantine will help mitigate, until enough immunity is reached. Likely 18 months - 2 years.
      - 6y ago
- deleted 6y ago
  [deleted]

by tpnCC 6y ago

steveeq1 6y ago

Yes, but the great bulk of evidence pretty much that you won't reinfect once you get it.

ztjio 6y ago
That is utter nonsense, that evidence can't exist with out the time having passed to gather it.
- deleted 6y ago
  [deleted]
tpnCC 6y ago
"The great bulk of evidence' in this situation would mean the data on the duration of presence of Neutralizing antibodies in the blood stream of people who got rid of the virus. But this data is not there yet,as I said before. Scientists are currently working to figure out how long the antibodies stay in the body and if they are potent enough to fight re-infections. There is 'no great bulk of evidence' yet. Unless I'm wrong, and I hope I am. https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(20)30985-5/fulltext https://www.thelancet.com/journals/lancet/article/PIIS0140-6... "For any country contemplating these issues, another crucial question is how solid is the assumption that antibodies to SARS-CoV-2 spike protein equate to functional protection?Furthermore, if presence of these antibodies is protective, how can it be decided what proportion of the population requires these antibodies to mitigate subsequent waves of cases of COVID-19?" "Furthermore, studies in COVID-19 show that 10–20% of symptomatically infected people have little or no detectable antibody." We need more data, which I understand scientists all over the world are working relentlessly to deliver, to believe that 'you won't reinfect once you get it'
- steveeq1 6y ago
  South Korea has studies that show re-infection after you get it won't happen in any meaningful way.
  - seppin 6y ago
    They'd made those conclusions in < 3 months? What is your source?
seppin 6y ago
Most antibodies to viruses don't last forever, the question is not if you can get COVID19 twice (you almost surely can) but how long in-between are you protected. And the evidence is unclear, and in some cases worrying: https://www.independent.co.uk/news/world/asia/coronavirus-japan-woman-tests-positive-twice-osaka-olympics-china-a9362421.html https://www.independent.co.uk/news/world/asia/coronavirus-ja...
- 100ideas 6y ago
  As @tpnCC and @seppin said, there is significant clinical & scientific uncertainty about covid19 antibody response and duration, partly because there hasn't been enough time to collect the relevant data (for covid19) and partly because of prior resarch indicating reduced human antibody response to SARS. Lower in this thread I commented about a 2011 resarch paper that demonstrated anti-SARS antibody levels fell by half 2 years postinfection and were undetectable 6 years postinfection in 21 of 23 SARS patients tested. see this chart https://www.jimmunol.org/content/186/12/7264.long#sec-7 https://www.jimmunol.org/content/186/12/7264.long#sec-7
  - seppin 6y ago
    If those SARS numbers are in the same vein as what is true for COVID19, the only answer is a vaccine. Otherwise our current state of affairs is the new normal for the foreseeable future.
    - svd4anything 6y ago
      I would also argue vaccine is not likely for many related reasons.
      - seppin 6y ago
        In that case COVID19 will play out like the 1918 flu, it will hit in waves that only mass quarantine will help mitigate, until enough immunity is reached. Likely 18 months - 2 years.
    - 6y ago
deleted 6y ago
[deleted]