pink poodle
aka stickchops
Some quality wares in that shop! Ask to see the back room.
It seems your government is doing it wrong. Good luck with the Olympics.
COVID-19: who’s going full doomsday prep on this?
- Thread starter johnny
- Start date
It seems your government is doing it wrong. Good luck with the Olympics.
PINT of Stella. mate!
Many, many Scotches
This article's from back in December of last year:
Australian study shows wastewater testing can detect coronavirus weeks before people show symptoms - ABC News
Can someone more science-ey please explain just how we keep detecting it in poo in areas where there are never any resulting confirmed infections? The article above seems happy to plod along under the assumption that it's been circulating in people who are asymptomatic but that just doesn't add up. The latest research into symptomatic buggers vs your typhoid marys suggest it's as low as 17% of covid cases that are asymptomatic or roughly 1 out of every 5. Even if it were skewed the other way and for every 5 asymptomatic cases there was just 1 who showed symptoms there would still be news of an outbreak in the sort of timeframes they're talking about.
Something doesn't smell right!
The only logical explanation I can think of is there's a common or garden coronavirus that's been around for donkeys years (possibly the common cold?) that resembles Covid 19 when it's been swimming amongst the Mersey Trout but we've just never tested for it before, but surely the poo boffins would have considered this?
Now my mind may be biased by the fact I've just finished another rewatch of The Wire but I can't help but think this sounds like McNulty's 'Serial Killer' in season 5! Is this just a ploy to get more funding so they can test more poo?
caad9
Likes Bikes and Dirt
Agrre with @Boom King, I think we have at least another 2 weeks in Melbourne.
I can't see how NSW gets on top of this to be honest, could be a very long haul. Obviously that has the potential to send the entire country backwards and I would say NSW will become an island for quite a long time.
I can't see how NSW gets on top of this to be honest, could be a very long haul. Obviously that has the potential to send the entire country backwards and I would say NSW will become an island for quite a long time.
Ackland
Eats Squid
Flight attendant flew regional Queensland routes while infectious with Delta variant of COVID-19
A Brisbane-based Qantas flight attendant travelled on routes to regional Queensland during her infectious period.
www.abc.net.au
Flow-Rider
Burner
Palachook isn't the sharpest tool in the shed, with all the influx of people looking for cheap housing we have a shortage of amenities in some areas, it is very difficult for people to even visit a local GP away from the CBD.
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moorey
with a big stick
Edith Cowan?
Flow-Rider
Burner
When doctors tested kids at the start of the outbreak in Wuhan, the nasal and throat swabs tested negative but anal swabs tested positive and the kids showed minor to no symptoms of the virus. Maybe it is more prevalent in the community than people think, or bullshit about their travel so that they don't get fined or lynch mobbed.
Yeah, I see them crowing about no cases here on the news in the last couple of days, and I'm thinking "nooo, don't tempt fate!"
Litenbror
Eats Squid
Yeah get your Stromlo rides in now I think we are going to be in the no further than 5km from home club soon.
Scotty T
2.6 inches
Lucky I live 3km away
Sadly for you Majura is probably unrideable for a while.Handlebar has decided to not open this weekend with the weather predictions, probably good to also keep any sneaky fucks from coming in the back door for a ride.
Litenbror
Eats Squid
Bah yeah Majura will be a swamp for a while I think, I'm just within the 5km for the downhill trails but they will be soup atm. There will be lots of Mt Ainslie fire road loops for me I suspect.Lucky I live 3km away
Handlebar has decided to not open this weekend with the weather predictions, probably good to also keep any sneaky fucks from coming in the back door for a ride.
Cardy George
Piercing rural members since 1981
Gillian Anderson I'm not as old as you
Haakon
Call me Ken, whoreken
At least I have Red Hill…
moorey
with a big stick
Oops, turn of wrong century....awkward... You just sound like it
gippyz
Likes Dirt
The work is based on the premise (or findings) that covid sufferers shed the covid RNA in their stool after they are infected. There have been previous studies about this, so it is likely to be true.
If you read through the paper - I won't go through it in great detail, but essentially, the methods they used to extract the viral RNA from the wastewater samples yield inconsistent results for both positive and negative samples. One of methods they used, from my understanding, basically counts the number of copies of the virus per litre of samples. If there are only small amount of virus in the samples, then this method is a hidden miss. Then they did some mathematical simulation to identify whether the presence of the virus in the stool and wastewater is in any way correlated with the positive cases, and as expected, the first yield a high correlation.
The paper also highlighted other studies which over-estimated the number of positive cases (from the wastewater). The model only found correlation between virus in stool and positive cases, and did not have the ability to reliably correlate the actual number of positive cases with the copies of viral RNA in the wastewater or stool (it wouldn't have been possible with the method they used anyway). EDIT: they actually have a formula to estimate the number of cases based on number of viral RNA copies, poop amount, wastewater amount, etc, but my guess is that even that is an over-estimation.
More importantly, this study is a proof of concept that have been shown to be promising. As with any biological experiments, there were likely to be only small sample sizes, which elevated the possibility of spurious results. As the authors noted, the method is promising, but larger sample size is required. They also noted the need for more reliable way of extracting the RNA of the virus from the sample, and that it is very hard to reliably quantify the presence of the virus if there is only a small amount of it.
So tldr, yes the method can reliably find positive cases if there were many of them, but in the case of only a small number, it struggles, as expected. Moreover, if you have covid, chances of the virus being present in your poop is very likely.
Have a read of the paper if you are interested: https://www.sciencedirect.com/science/article/pii/S0048969720322816. Just focus on the intro and discussion if the result section is too much.
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You told me it was Gillian Andersen, the famous Dutch author.