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Asymptomatic Cases

  • 26-04-2020 5:10pm
    #1
    Registered Users Posts: 437 ✭✭ paddythere


    When they say that half of people who have this are asymptomatic, what exactly do they mean?

    Do they mean they had no symptoms when they tested positive and will develop symptoms soon or do they mean some people have it and never develop symptoms at all?

    I'm asking as I know someone who returned from Spain when this was all kicking off and tested positive but never developed any symptoms at all. She is about 60 and diabetic. Seems odd but its true.


«1

Comments

  • Registered Users Posts: 4,673 ✭✭✭ Pretzill


    Asymptomatic means without symptoms.


  • Registered Users Posts: 1,817 ✭✭✭ Season 2


    If someone had it and was described as Asymptomatic generally that means no symptoms.
    But they could have been presymptomatic where they went on to develop symptoms.


  • Registered Users Posts: 437 ✭✭ paddythere


    Pretzill wrote: »
    Asymptomatic means without symptoms.

    I'm aware of that. I'm saying they are not giving much information about the amount of these cases which never actually develop any symptoms at all


  • Registered Users Posts: 437 ✭✭ paddythere


    Season 2 wrote: »
    If someone had it and was described as Asymptomatic generally that means no symptoms.
    But they could have been presymptomatic where they went on to develop symptoms.

    Thats what I'm saying. They really should provide a bit of information on this. I'd like to know what % of people who get it develop no symptoms at all.


  • Registered Users Posts: 4,673 ✭✭✭ Pretzill


    paddythere wrote: »
    I'm aware of that. I'm saying they are not giving much information about the amount of these cases which never actually develop any symptoms at all

    Because they don't have symptoms they are probably not getting tested. So there wouldn't be much information to impart.


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  • Registered Users Posts: 8,841 ✭✭✭ irishgeo


    paddythere wrote: »
    I'm aware of that. I'm saying they are not giving much information about the amount of these cases which never actually develop any symptoms at all

    They don't know about them. This is what will reduce the death rate if they do find a way to identify these cases of it.


  • Banned (with Prison Access) Posts: 4,077 ✭✭✭ Away With The Fairies


    60 and diabetic, tested positive and no symptoms... That's crazy... How are they now?


  • Registered Users Posts: 1,817 ✭✭✭ Season 2


    paddythere wrote: »
    Thats what I'm saying. They really should provide a bit of information on this. I'd like to know what % of people who get it develop no symptoms at all.

    There was a prison in Ohio where 96% of confirmed cases were asymptomatic.


  • Registered Users Posts: 74,942 ✭✭✭✭ JP Liz V1


    Pretzill wrote: »
    Asymptomatic means without symptoms.

    Yes that what I believe it means

    Also I hate that word asymptomatic now


  • Closed Accounts Posts: 4,550 ✭✭✭ ShineOn7


    The asymptomatic is a strange one for me

    Some reports says the % of asymptomatic cases is 50/60%, but then WHO say it's closer to 3-5%. That's a huge feckin' canyon of difference

    We can't even trust WHO anymore after how much they've fúcked this up

    The higher the asymptomatic rate, the better as that would mean the mortality rate is well below 1% (but still many times more lethal than the flu)


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  • Registered Users Posts: 29 PricklyPete


    There was a piece on sky news (I think) earlier about Iceland. They've tested 40k ppl which is a huge proportion of the population. Half of those testing positive were asymptomatic, but surely they must be counting people who have yet to develop symptoms amongst those too. They definitely never make it clear one way or the other in any of the similar reports I've seen.


  • Moderators, Business & Finance Moderators, Science, Health & Environment Moderators, Society & Culture Moderators Posts: 51,488 Mod ✭✭✭✭ Stheno


    paddythere wrote: »
    When they say that half of people who have this are asymptomatic, what exactly do they mean?

    Do they mean they had no symptoms when they tested positive and will develop symptoms soon or do they mean some people have it and never develop symptoms at all?

    I'm asking as I know someone who returned from Spain when this was all kicking off and tested positive but never developed any symptoms at all. She is about 60 and diabetic. Seems odd but its true.

    How did they get a get a test with no symptoms?

    Did they have contact with a confirmed case?


  • Closed Accounts Posts: 4,550 ✭✭✭ ShineOn7


    There was a piece on sky news (I think) earlier about Iceland. They've tested 40k ppl which is a huge proportion of the population. Half of those testing positive were asymptomatic, but surely they must be counting people who have yet to develop symptoms amongst those too. They definitely never make it clear one way or the other in any of the similar reports I've seen.


    Not sure I put much weight into that Iceland study and it's very low mortality rate (around 0.35% I believe) as i did initially.

    Iceland's geography, location, spread out population, low population are all very different to other affected countries


  • Registered Users Posts: 437 ✭✭ paddythere


    Stheno wrote: »
    How did they get a get a test with no symptoms?

    Did they have contact with a confirmed case?

    I'm not entirely sure tbh, I tried to enquire about that but I didn't really get an answer. I know she minds children for a doctor so I suspect the doctor probably arranged for a test to be safe since the lady I know had recently returned from Spain.


  • Registered Users Posts: 437 ✭✭ paddythere


    There was a piece on sky news (I think) earlier about Iceland. They've tested 40k ppl which is a huge proportion of the population. Half of those testing positive were asymptomatic, but surely they must be counting people who have yet to develop symptoms amongst those too. They definitely never make it clear one way or the other in any of the similar reports I've seen.

    Yea that's what I mean, not much information being provided on this. Like, I'm thinking that since I know someone who is 60 and diabetic but has had it weeks without ever developing any symptoms then surely something like half the people who get this don't ever develop any symptoms. Hard to know.


  • Registered Users Posts: 437 ✭✭ paddythere


    60 and diabetic, tested positive and no symptoms... That's crazy... How are they now?

    Still no symptoms despite testing positive weeks ago


  • Registered Users Posts: 5,964 ✭✭✭ pgj2015


    does anyone know if and when we will all be able to get tested to see if we have had it or not? even people who have had no symptoms.


  • Registered Users Posts: 6,958 ✭✭✭ ceadaoin.


    There was another case at a Boston homeless shelter where all of the 146 people who tested positive were asymptomatic

    https://www.wbur.org/commonhealth/2020/04/14/coronavirus-boston-homeless-testing

    I think it's likely that good portion of the population in epicenters has had this, even if they weren't aware of it. It will definitely turn out that the fatality rate is way lower than first indicated.


  • Banned (with Prison Access) Posts: 4,077 ✭✭✭ Away With The Fairies


    paddythere wrote: »
    Still no symptoms despite testing positive weeks ago

    I hope it stays like that. I really hope the immune system can fight it off in these asymptomatic cases.


  • Registered Users Posts: 8,649 ✭✭✭ Lisha


    I’d love to know, If people are asymptomatic, how long will they stay positive and infectious for?


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  • Registered Users Posts: 360 ✭✭ the14thwarrior


    the mass testing in one nursing home has shown up the same positive results in asymp. people. and they infected lots of staff

    sad but true


  • Registered Users Posts: 1,924 ✭✭✭ Mongfinder General


    paddythere wrote: »
    Still no symptoms despite testing positive weeks ago

    So how long does it stay in the body posing a threat to her and others?

    The reason why we are not getting the information we need is because our health "experts" don't fully understand what they're talking about. That's why the action to date has been stay inside and only call us if you're on deaths doors.


  • Closed Accounts Posts: 4,550 ✭✭✭ ShineOn7


    Lisha wrote: »
    I’d love to know, If people are asymptomatic, how long will they stay positive and infectious for?


    I believe the HSE worker doing the AMA said that people shed Covid for upto 3 weeks after and to allow 4 weeks to be safe. I'd have to trawl back through his very big AMA to get more concrete numbers though



    It's here for anyone looking https://www.boards.ie/vbulletin/showthread.php?t=2058062219


  • Registered Users Posts: 2,140 ✭✭✭ What Username Guidelines


    It’s an interesting one. One the the first cases here was a nurse who came back from Italy and insisted on a test before returning to work. She was positive so they tested the whole group. I think it was maybe 7 or 9 out of 16 were positive. All in hospital as all cases were admitted at first. One (maybe more) was completely asymptomatic the whole time.

    I read about that 96% prison story but there may be plenty of presymptomatics so it’s an interesting one to follow. Along with the cruise ships and aircraft carriers around the place as microcosms.

    I think the IFR will really depend on the cohort of people. If you’ve a city of very young people it’ll be a different to story to a city of old and overweight people, for example.

    The asymptomatic number being high is good news, but even with all the antibody tests going on and giving initial good results, I’m still not convinced it’s that high because how can South Korea keep a lid on the whole thing if there are 4x or 5x cases for every symptomatic case.


  • Registered Users Posts: 10,039 ✭✭✭✭ Danzy


    Cuomo said testing in New York city suggests an infection rate of 21% as of early last week.


  • Closed Accounts Posts: 4,550 ✭✭✭ ShineOn7


    I read about that 96% prison story but there may be plenty of presymptomatics


    What's presymptomatic mean in terms of Covid?


  • Registered Users Posts: 1,924 ✭✭✭ Mongfinder General


    Danzy wrote: »
    Cuomo said testing in New York city suggests an infection rate of 21% as of early last week.

    That's pretty much what I worked out for Dublin when weighting confirmed cases in Dublin against the sample size and multiplying by population quotient.


  • Registered Users Posts: 2,004 ✭✭✭ Hmmzis


    ShineOn7 wrote: »
    What's presymptomatic mean in terms of Covid?

    One can test positive before developing any symptoms. Viral sheding can happen before any symptoms start, hence Korea having so much trouble keeping it under control even with their monumental effort of testing, tracing and isolating all contacts.

    The data from the Diamond Princess was quite the jaw dropper for me as the asymptomatic/symptomatic split was almost 50/50 regardless of any age groups or pre-existing conditions. Same with that aircraft carrier and other places where extensive testing has been done, including our own care homes. I can't quite wrap my head around that, we're missing something very important that could save many, many lives.

    Could we start testing those asymptomatic cases for any other coronavirus antibodies (HCoV types, since no others made it far)? Maybe some tests on their angiotensin system, any particular differences? I'm sure this must be driving the researchers and doctors nuts.


  • Banned (with Prison Access) Posts: 4,077 ✭✭✭ Away With The Fairies


    paddythere wrote: »
    When they say that half of people who have this are asymptomatic, what exactly do they mean?

    Do they mean they had no symptoms when they tested positive and will develop symptoms soon or do they mean some people have it and never develop symptoms at all?

    I'm asking as I know someone who returned from Spain when this was all kicking off and tested positive but never developed any symptoms at all. She is about 60 and diabetic. Seems odd but its true.

    Does this person smoke by any chance?


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  • Moderators, Business & Finance Moderators, Science, Health & Environment Moderators, Society & Culture Moderators Posts: 51,488 Mod ✭✭✭✭ Stheno


    Tony Holohan announced in one of the briefings during the week that once yhey9decide what antibody tests will be used, there are plans for a joint antibody testing scheme with NI to do surveillance testing and try to identify the true rate of infection

    Didnt give a timeframe


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