The biology of coronavirus COVID-19 - including research and treatments

Discussion in 'Epidemics (including Covid-19, not Long Covid)' started by Trish, Mar 12, 2020.

  1. boolybooly

    boolybooly Senior Member (Voting Rights)

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    "Realistic possibility" they said, while settling in for a long sit on the fence. Presumably they feel duty bound to report adverse findings ASAP.

    The three UK analyses appear to based on the same data set which nervtag say has "limitations".

    The BBC News article I saw this morning said the variant data was gathered for 8% of known infections, which leaves 92% unknown. We spectators have no way of knowing whether there are any systematic biases in the data gathering. Independent data from other countries about the same variants should help to clarify eventually, might take a while.

    The booster shot is being discussed this morning by the BBC in relation to "senior doctors" calling for frontline health workers to get the booster on time to ensure their immunity.

    If the UK variant has evolved higher infectivity then it is significant for the delayed booster strategy which, as the "pissed off virologist" discussed, will increase the population of active virus under high selection pressure for vaccine survival, making it more likely that vaccine resistant variants will evolve, along the same lines as antibiotic resistance, by which logic its best to complete the course as it were and knock the virus out with maximum efficacy wherever vaccines are employed.
     
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  2. Binkie4

    Binkie4 Senior Member (Voting Rights)

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  3. Trish

    Trish Moderator Staff Member

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    I've read the article, it suggests to me that the consent process was clear. Just because he's been offered the approved vaccine now and refuses it doesn't mean he can't have it later if it turns out the results of the trial he was in are not very good. The results are due next month anyway, so not long to wait. I think he's making more of an issue of this than he needs to.

    Edited to correct gender of the author.
     
    Last edited: Jan 23, 2021
  4. Binkie4

    Binkie4 Senior Member (Voting Rights)

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    I agree that HE is. In fact he's a writer and it's not the first article he has written about the experience of being a trial participant. Maybe having an article accepted has replaced a usual source of income and reflecting on his personal responses informs his writing.

    I was just surprised that he did not seem to know the consequences of being involved in a vaccine trial. I would have thought it would have been explained that if a different successful vaccine was found and approved, the MHRA does not advise vaccination with it immediately ie it recommends waiting for the results of the trial in which he is participating because there is no research evidence of the effects of being double vaccinated.

    .( "Because of this lack of knowledge, the Medicines and Healthcare products Regulatory Agency (MRHA) advises those in a vaccine study not to take an approved vaccine.")

    I read it as a personal experience story (and the idiosyncrasies of one's reactions) rather than a science based one but did think the MHRA advice would have been explained. Perhaps it was but was then forgotten, or he really wanted to have had the placebo so that he could have the Oxford vaccine and know where he stood.
     
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  5. Trish

    Trish Moderator Staff Member

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    Oops, corrected gender.
     
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  6. Jonathan Edwards

    Jonathan Edwards Senior Member (Voting Rights)

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    The writer seems to have lost the plot at the end. One can only really sympathise with an attempt to argue through a complex situation if the argument makes sense.

    It is interesting that he says that: Because of this lack of knowledge, the Medicines and Healthcare products Regulatory Agency (MRHA) advises those in a vaccine study not to take an approved vaccine.

    This must be unethical. It is completely against the principle that someone in a trial can do whatever they want when they want. IN fact the author's statement does not make sense and betrays a failure of logic. Whatever the MHRA said it was not because of a lack of knowledge. it might have been because of a desire to avoid overuse of vaccines but it is far from clear.



    Then at the end he calls a friend who seems to provide the same irrational argument - that he should not have the proven vaccine because there is uncertainty. But there isn't uncertainty about the proven vaccine. It seems to me either that the scientist friend should have. been a bit clearers or that the author simply does not understand his own dilemma. The GP does not seem to help either. Why do they recommend not taking a proven vaccine? To save doses? That is the one thing you are not allowed to advise in the context of trials. The ethics of trials are all about the individual, not about the population at large. That is why we have trial ethics.
     
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  7. Wits_End

    Wits_End Senior Member (Voting Rights)

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  8. Snow Leopard

    Snow Leopard Senior Member (Voting Rights)

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    Last edited by a moderator: Jan 29, 2021
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  9. FMMM1

    FMMM1 Senior Member (Voting Rights)

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    The Astrazenica vaccine started to be used around 4th January [https://www.bbc.co.uk/news/uk-55525542]

    So lets say 11th January for general rollout.
    14 days to develop immunity [25th January]
    deterioration, requiring hospitalisation, usually occur 10 days after infection [infected 25th - hospitalised 4th February]
    so I guess the "real world" evidence of whether 1 shot Astrazenica prevents serious illness (hospitalisation) should be evident from mid-February (14th).

    I'm hoping one shot is enough to keep you out of hospital i.e. that the UK can continue with 1 shot vaccination - vulnerable family member (55-60 year old), due to be vaccinated in March.
     
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  10. Mithriel

    Mithriel Senior Member (Voting Rights)

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    The virus will never go away now so the hope is that vaccines will help stop people getting infected so the likelihood of meeting someone excreting virus will become low.

    People with ME are vulnerable to all infections as they carry the risk of the disease becoming worse so it makes sense to carry on with handwashing and so on even if the number of covid cases drop. Viruses need to enter our bodies to replicate so making sure we have no particles on our hands and that we avoid touching the entrance points of mouth nose and eyes would always have been good for us but it was never really spelled out.

    One thing the pandemic has done is to make it easier for us to take these precautions. I was never happy about shaking hands but now have an excuse.

    Jonathan Edwards has spoken about doctors he knew who did all the handwashing and so on to protect themselves from ebola and carried on with not touching their faces when they returned to the UK and found that they had much fewer colds.

    Distancing will be more difficult when other people forget though. It is a strange thought, but when I needed to use a walking stick people gave me more room so that could be something to try.

    Making sure you have your own dishes and things and disinfecting the bathroom before you use it may make you feel more secure. personally I think it will be a long time before I go out without a mask and alcohol gel.

    Try not to worry too much.
     
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  11. Wits_End

    Wits_End Senior Member (Voting Rights)

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    Can't read the tweet, but I understood they've now changed their mind and approved it for all age groups?
     
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  12. Snow Leopard

    Snow Leopard Senior Member (Voting Rights)

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    The EU approved it, I think Germany is still going to avoid it's use for over 65s. The tweet shows the lack of data (1 covid case each in both vaccine and placebo groups)
     
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  13. John Mac

    John Mac Senior Member (Voting Rights)

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    More than 50 Long-term effects of COVID-19: a systematic review and meta-analysis

    Long term effects of Covid-19.JPG

    https://www.medrxiv.org/content/10.1101/2021.01.27.21250617v1
     
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  14. Snow Leopard

    Snow Leopard Senior Member (Voting Rights)

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    Of course this is not the same as LongCovid - some of the people with dyspnea or ageusia might not have the other most common LongCovid symptoms (fatigue, headache, brainfog).
     
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  15. Snow Leopard

    Snow Leopard Senior Member (Voting Rights)

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    Defining the role of asymptomatic and pre-symptomatic SARS-CoV-2 transmission – a living systematic review

    https://www.sciencedirect.com/science/article/abs/pii/S1198743X21000380

    So (reported) asymptomatic cases are around 85-90% less likely to transmit the virus to someone else given the mean figures. This compares to around 90% less that I mentioned previously in the Wuhan contact tracing study.
     
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  16. Amw66

    Amw66 Senior Member (Voting Rights)

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  17. Sly Saint

    Sly Saint Senior Member (Voting Rights)

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  18. Wits_End

    Wits_End Senior Member (Voting Rights)

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    And yet, despite all this, apparently still 1 In 7 Brits Believe There Is A Huge Coronavirus Cover-Up Involving Politicians, Scientists And Journalists

    https://www.msn.com/en-gb/news/ukne...ournalists/ar-BB1dfKfc?ocid=ASUDHP&li=AAnZ9Ug

    Sorry, I couldn't think where else to put it, but it just shows what people are having to fight against - as well as the virus, obviously. You can have special reports from the "frontline" on the news all week, show care staff desperately begging us to follow the rules so we don't make anyone else sick, show exhausted NHS personnel struggling to hold it together, and so many people still believe it's a con? It makes me REALLY ANGRY :mad::banghead:
     
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  19. Trish

    Trish Moderator Staff Member

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  20. Sly Saint

    Sly Saint Senior Member (Voting Rights)

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    the article says 1-3 doses a day and there are around 1,350 vaccination centres.
    I think the point the author is making is that if they can't get people on the official 'list' at short notice then they should be able to 'use up' the leftover doses by giving frontline staff their second shot.
     
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