#Prevalence

Ron Zimmern

RonZimmernPHG

1/5 I have some difficulty understanding why there is so much discussion by @deeksj with @SMHopkins about the false -ve rate (1-sensitivity) of rapid Covid tests without mentioning prevalence or

Kylie Ainslie

DrKAinslie

In round 4, we observed:- highest prevalence in 18 to 24 age group at 0.25% (0.16%, 0.41%), increasing from 0.08% (0.04%, 0.18%) in round 3. - lowest prevalence in 65+

David Paton

cricketwyvern

I think @ChrisGiles_ is basing his point on schools on the fact that prevalence is down more amongst school age children than 70+.But if you look at the timing of

Chris Musson

ChrisMusson

Scot Gov is refusing to say what it thinks the prevalence for Spain is, saying the figure they have is UK Government data and it's for them to give out.

Soumya

skarlamangla

The prevalence of the coronavirus in LA County is higher than ever before: officials estimate that 1 in 80 people in the county are currently infectious with the virus. Up

Yardley Yeadon

MichaelYeadon3

In case anyone thinks this is over the top, recall last week the stories about falling antibody prevalence & concerns about duration of immunity?People like me tried to correct this

Health Nerd

GidMK

Thought I'd take a leaf out of @ProfMattFox's book and use some 2x2 tables to illustrate thishttps://twitter.com/GidMK/status/1278468849294168064 So, here's our table. We've got positive and negative results for our test

Dr David Robert Grimes

drg1985

One thing that sometimes get lost in COVID stats: incidence is a function of confirmed cases per unit population. But it's related to testing rate, & population tested. It's not

Dr David Robert Grimes

drg1985

Hi @JuliaHB1 - your claim here is highly misleading, and misunderstands #CovidTesting. I'll try explain why: firstly, the sensitivity of PCR #COVID19 test is ~98%, specificity 98.9%. Now, false positives

Murad Banaji

muradbanaji

My piece in The Wire on the third national serosurvey. The headline (~21% prevalence) is probably not a major underestimate. Apparently the antibody test used was less vulnerable to missing

Dr Nisreen Alwan 🌻

Dr2NisreenAlwan

1/ New #LongCovid prevalence figures by age and sex out by @ONS today. Prevalence of any symptom at 5 wks after positive test: 27% at age 35-4926% at age 50-6925%

Prof. Devi Sridhar

devisridhar

Keep being asked questions about meeting/travel over the holidays that people want to hear an emotionally reassuring & comforting answer. I can't do that as a public health scientist right

el gato malo

boriquagato

this is an important issue to internalize:so much defense and resistance to COV-19 is based in t-cells, that sero-prevalence of antibodies can be a very misleading figure.in this german study,

Emma Tenison

EmmaTenison

V interesting #NHSEdeliriumwebinar with talks by @adamgordon1978 @delirious_dr @psychinformatic @emmavardy2 Lots of learning points/useful references:- confusion 5th most common symptom of #covid19 in ALL age grps http://doi.org/10.1136/bmj

Oliver Johnson

BristOliver

Might take a bit, but I want to try to explain (in 2-3 bursts) why I think ATM the ONS Infection Survey is like trying to weigh out cake ingredients

Mark Langer MD

TheRealDoctorM2

Thread:Why aren't facemasks and "lockdowns" working in California?Because they aren't a means to Resolution..they are MITIGATION. It's proportional. Community prevalence has increased to the point that their capacity t

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