This link has been bookmarked by 226 people . It was first bookmarked on 05 Mar 2020, by ericcrampton.
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15 Oct 22
dean groom@Mark_Butler_MP @AlboMP We're setting records
RT @AltenbergLee: @andyaschmidt @wsbgnl No, there's a very wide range of COVID infection over the world. Among the countries abandoning public health there is a wide divergence. Causation is clearly multifactorial. Here's a selection from OWID: … -
07 Feb 22
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18 Jan 22
Ian ForresterData collected around the world for Covid19
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30 Dec 21
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28 Jul 21
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14 Jan 21
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08 Jan 21
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23 Nov 20
soychorizoThe COVID-19 pandemic in Taiwan.
• The worst period of the outbreak was at the end of March. On a single day (May 31) three people died.
• The other three victims died on March 21, April 12 and May 12.
→ https://t.co/tlwlRfElgw https://t.co/8VTQdW8j0u -
16 Nov 20
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15 Nov 20
Carlos ParraCountry-by-country data and research on the pandemic. Updated daily.
coronavirus_mapa semáforo_35_contagios_semanales_por_cada_100_mil_habitantes universidad_de_oxford our_world_in_data
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18 Oct 20
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27 Jul 20
Zoe PipeAll our work on the COVID-19 pandemic just got updated for today Sunday July 26
→ https://t.co/bp2y7cHaIf
As always you can download the entire dataset for the pandemic (just got updated as well) and you can use all of our work for whatever you find it u -
07 Jun 20
Muzaffaruddin Alvivia All News on 'The Twitter Times: Muzaffar69/corpgov' https://bit.ly/2Mw5vpR
#CorpGov All News on 'The Twitter Times: Muzaffar69_corpgov'
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03 Jun 20
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24 May 20
Marcello MorselloSomos o 2º país com mais casos no mundo. Nossa epidemia começou a crescer agora, mal vimos as mortes que vem pela frente. Plotei tanto o número de casos ou mortes absolutos quanto relativos por milhão de pessoas, o cenário é pavoroso de qualquer forma.
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10 May 20
Dennis OConnorMax Roser, Hannah Ritchie, Esteban Ortiz-Ospina and Joe Hasell (2020) - "Coronavirus Pandemic (COVID-19)". Published online at OurWorldInData.org. Retrieved from: 'https://ourworldindata.org/coronavirus' [Online Resource]
License: All of Our World in Data is completely open access and all work is licensed under the Creative Commons BY license. You have the permission to use, distribute, and reproduce in any medium, provided the source and authors are credited.
Please consult our full legal disclaimer.
Global Change Data Lab logoOur World In Data is a project of the Global Change Data Lab, a registered charity in England and Wales (Charity Number 1186433). -
09 May 20
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05 May 20
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01 May 20
Graham Perrinhttps://redd.it/fmyced
https://redd.it/gba69c -
25 Apr 20
an88zi"by Max Roser, Hannah Ritchie, Esteban Ortiz-Ospina and Joe Hasell
We are grateful to everyone whose editorial review and expert feedback on this work helps us to continuously improve our work on the pandemic. Thank you. Here you find the acknowledgements." -
23 Apr 20
Nabor GarridoDe acuerdo con los datos proporcionados por Our World in Data, de la Universidad de Oxford (https://t.co/JJUJsuIMFw), después de 50 días no vamos nada mal comparado con cómo estaban países de primer mundo al mismo tiempo.
2/7 -
22 Apr 20
Dhul QarnaynComparativa de test covid-19 por 1000 hb. España no aparece. He tenido que leerlo tres veces, no doy crédito
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Berenice BlancoComparativa de test covid-19 por 1000 hb. España no aparece. He tenido que leerlo tres veces, no doy crédito
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20 Apr 20
Owen DanielWe just updated all our #COVID19 charts & data for Monday 20th April: https://t.co/wU7x3bOYk7
¯¯¯
This is how Germany and the UK compare.
(Germany's population is larger. And both countries had the outbreak at the same time.) pic.twitter.com/vutLtw… -
david osimoA Policy Experiment:
Denmark, Sweden and Norway each had their first confirmed Covid death about one month ago.
https://t.co/yId7h7h3p3 https://t.co/bdfTotdwkc -
16 Apr 20
jose muriloDisse ainda em março que em abril veríamos se o Brasil continuava seguindo pelo cenário de Espanha e Itália e podemos ver que não estamos. Distanciamento social funciona e tem funcionado bem aqui #FiqueEmCasa :)
https://t.co/TCLkr5rXab
https://t.co/uinTuX -
Molly MyersJust did our daily update of @OurWorldInData #COVID19 data & charts for 16th April.
Many of you asked us to restructure our work to get straight into the charts you want to see.
So we’ve made a major update to our work today.
Hope this is helpful! -
12 Apr 20
Peggy GeorgeAll our work is now up-to-date for today Friday April 10 https://t.co/wU7x3bOYk7
–
This shows confirmed deaths relative to the size of the population.
– In Italy and Spain the rate of confirmed deaths is falling.
– In the US and Germany it's rising.
– An
As recently as the beginning of June the US and Canada had the same death rate.
While the US is unfortunately getting back to the rate from back then, Canada achieved a 20-fold reduction of the death rate at the same time.
https://t.co/wU7x3bOYk7 https: -
07 Apr 20
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05 Apr 20
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04 Apr 20
Prof.Lakshman MadurasingheCoronavirus Disease (COVID-19) – Research and Statistics https://t.co/6BH1rz1DM4 #askpopsci
Coronavirus Disease (COVID-19) – Statistics and Research https://t.co/6BH1rz1DM4 #askpopsci -
03 Apr 20
Rafael DohmsOlhando para a média de mortes dos últimos 3 dias dá para ver que Itália e Espanha estabilizaram. E EUA e UK vão ver um período difícil. Nós estamos uns 10-15 dias atrás do cenário atual https://t.co/rem0iM1SRd https://t.co/zPRLW7C60a
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30 Mar 20
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29 Mar 20
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28 Mar 20
Dan R.D.To figure out what will be happening with COVID-19, you have to understand what the statistics mean. You are not going to understand it if you only listen to pundits ..
https://t.co/Ca4ViAK07n -
27 Mar 20
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26 Mar 20
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25 Mar 20
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Pranger Prangerson@njdotcom And for the data-centric, here is one of the best ways to know whether we've started to bend the curve - how many days it takes for the number of deaths to double. A grim statistic, but if it gets above 3 days, then we've started to #FlattenTheC
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Mike BaldwinI was going to give a tweetorial in Case fatality rates, testing, total deaths and confirmed case and how they vary with healthcare system, age and co-morbidity but the experts have already done it better than I ever could. Read
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BelenSí, hay que hacer más tests. Todos repetimos ese mantra.
Pero por curiosidad, ¿estamos MUY lejos de los que hacen otros países?
De Europa sí (van más tiempo).
Con América estamos más parejos.
(Nota: son los datos que hay, algunos de varios días atrás) -
24 Mar 20
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23 Mar 20
Paulo Moekottehttp://twitter.com/mtnbvan/status/1242111876009529344 Germany, Spain, Netherlands, Canada & USA are doubling faster now - Global Charts v. @ OneWorld @MaxCRoser, Hannah Ritchie and Esteban Ortiz-Ospina (with @ECDC_Outbreaks data) …
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22 Mar 20
LC HornOnce again: DO NOT TRACK THE NUMBER OF CASES. THIS IS SUPPOSED TO INCREASE AS TESTING COMES ONLINE.
Instead, track the number of deaths per day. If the "doubling time" of these slows to more than 3 days, we're starting to bend the curve.
thread: https:/ -
John LuceroBookmark this. When the doubling time of deaths* gets above 3 days, we will have begun to get past the runaway period of the pandemic.
Note the current doubling times for China (35 days) & South Korea (12 days).
*not cases, which can be underdiagn…
Bookmark this. When the doubling time of deaths* gets above 3 days, we will have begun to get past the runaway period of the pandemic.
Note the current doubling times for China (35 days) & South Korea (12 days).
*not cases, which can be underdiagno -
Dean Hacker.@MaxCRoser @SamWangPhD Sobering numbers from the regularly-updated @OurWorldInData #COVID19 website: https://t.co/nvdSzs36VH -- US confirmed deaths are still doubling every 3 days: far too high. #NovelCoronaVirus #CoronaVirus #Pandemic #ExponentialGrowt
The trends in Spain and Italy continue to be encouraging. Given when they started their social distancing, there's good reason to expect the US to follow in their footsteps soon. (https://t.co/gKM9MAfaq6) https://t.co/5sWwtLLiOUCOVID19 NovelCoronaVirus CoronaVirus Pandemic ExponentialGrowth
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18 Mar 20
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17 Mar 20
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16 Mar 20
sebaspoAcabo de hacer la cuenta de argentina a un par de meses con los datos de https://t.co/mCHnuF9H7Y (ballpark y ponele), la verdad no lo quiero tuitear.
Encima leo a varios de acá proponiendo juntadas. Es obvio lo que va a pasar. -
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The names for the virus and the disease it causes have been announced by the World Health Organization and the International Committee on Taxonomy of Viruses.12
The disease is called coronavirus disease. It is abbreviated as COVID-19.
The virus is called severe acute respiratory syndrome coronavirus 2 and it is abbreviated as SARS-CoV-2. In the same statement the WHO also explains that they themselves also refer to the virus as “the virus responsible for COVID-19” or “the COVID-19 virus” when communicating with the public. We follow the same conventions here.
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Coronaviruses are a group of viruses that are common in humans and are responsible for up to 30% of common colds.14 Corona is Latin for “crown” – this group of viruses is given its name due to the fact that its surface looks like a crown under an electron microscope.
Two outbreaks of new diseases in recent history were also caused by coronaviruses – SARS in 2003 that resulted in around 1,000 deaths15 and MERS in 2012 that resulted in 862 deaths.16
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- For the majority of people, symptoms are mild and in some cases similar to the common flu.
- An epidemic of the same disease can cause a very high number of deaths.
The total mortality of an epidemic can be high even if the symptoms for the vast majority are mild. While it might not seem intuitive, it is possible for the following two things to be true at the same time:
As we discuss here, the symptoms of COVID-19 can be very severe in many cases. Many of these patients require treatment in intensive care units (ICUs). The WHO reports that “about a quarter of severe and critical cases require mechanical ventilation.”18
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This is why early counter measures are important in an epidemic. Their intention is to lower the rate of infection so that the epidemic is spread out over time such that the peak demand on the healthcare system is lower.
Containment measures are intended to avoid an outbreak trajectory in which a large number of people get sick at the same time. This is what the visualization shows.
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Health systems can care for more patients across an outbreak when the number of cases is spread out over a long period rather than condensed in a very short period.
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COVID-19 leads to a number of symptoms, but from what is known currently some symptoms are much more common than others and for this reason we need to look at the available data.
The danger of relying solely on text and not on numbers is that crucial nuance can get lost. This is the case for the media coverage of the symptoms of COVID-19.
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In a simple list of COVID-19 symptoms the reader might see that muscle pain is listed as a symptom and then wrongly conclude that they do not have the disease if they are not suffering from muscle pain. Knowing the frequency of symptoms means knowing that the vast majority of known cases (85% in the sample below) did not suffer from this symptom.
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As the visualization shows, close to 90% of cases had a fever and two-thirds had a dry cough.
The third most common symptom was fatigue. Almost 40% of cases suffered from it.
‘Sputum production’ was experienced by every third person. Sputum is not saliva. It is a thick mucus which is coughed up from the lungs (see here).
Of the 55,924 cases fewer than 1-in-5 (18.6%) experienced shortness of breath (‘dyspnoea’). An earlier study, reported that a much higher share (55%) of cases suffered from dyspnoea, but this was based on a much smaller number of cases (835 patients).21
Many of the most common symptoms are shared with those of the common flu or cold. So it is also good to know which common symptoms of the common flu or the common cold are not symptoms of COVID-19. COVID-19 infection seems to rarely cause a runny nose.
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While the mean incubation period is 5 to 6 days, the WHO adds that the incubation period can vary in a wide range of between 1 to 14 days.23
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On average the disease lasts two weeks. The WHO reports that “the median time from onset to clinical recovery for mild cases is approximately 2 weeks.”24
Again this is based on the 55,924 confirmed cases in China
For severe and critical cases it is 3 to 6 weeks according to the same study.
And for those who eventually died, the time from symptom onset to death ranged from 2 to 8 weeks. This is important when interpreting the case fatality rate (see below). Measures of the CFR of an ongoing outbreak do (obviously) not include deaths of patients who will eventually die, but have not died yet at the time of measurement. This means that the current CFR would be lower than the eventual CFR.
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It seems to be common that symptoms start with a fever, followed by a dry cough.25
After several days some patients experience shortness of breath.
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What we want to know is the risk of dying once you are infected with COVID-19.
As of early March 2020, this is not known to researchers, and we therefore have to rely on a number of metrics that allow us to get a perspective on the risk of mortality. However, to make sense of these metrics we need to understand their definitions and the challenges in measuring them. This is the focus of the section below.
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15 Mar 20
juanmiguelcqExplorando los datos de https://t.co/8Hegw5KjKf, se puede comparar las sendas de contagios de covid-19 de algunos países que hoy en día tienen muchos casos, con las de Colombia. https://t.co/oJAHUT1DY7
Predicción de nuevos casos de covid-19 para país promedio. Variables explicativas: polinomio (5) del tiempo desde el paciente cero y diferente intercepto por país (Datos https://t.co/8Hegw5KjKf). Los nuevos casos suben muy rápido y solo empiezan a bajar d -
14 Mar 20
Peter CarpenterOn our site you find the up-to-date data from the World Health Organization on COVID-19
https://t.co/wU7x3bOYk7
You can explore and compare the number of confirmed cases and deaths like this. https://t.co/9ELOwq3nhR -
Steven DehandtschutterOver the last days (and nights) @danielgavrilov built this interactive COVID19 table.
It answers the question:
How long did it take for the number of confirmed cases to double?
It also plots cases over time.
This table – for all countries – is here: ht -
freude912This is a really lovely comprehensive explainer. Well done.https://t.co/qNdy5hyX3x
— Phoebe Ayers (@phoebe_ayers) March 14, 2020
Bookmark this. When the doubling time of deaths* gets above 3 days, we will have begun to get past the runaway period of the pandemic.
Note the current doubling times for China (35 days) & South Korea (12 days).
*not cases, which can be underdiagn… -
11 Mar 20
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10 Mar 20
Celia EmmelhainzA calm explanation about what we know about COVID and how to understand the numbers that are being thrown about.
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09 Mar 20
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Wessel van RensburgThis is the most important fact to spread about #COVID19
https://t.co/2OGhloFKEF https://t.co/D3TOFlMuuL
The new #COVID2019 data for Italy by the WHO is out.
• The number of total confirmed cases has *doubled in the last 3 days*.
(from 4.6k to 9.2k)
• In the last day the increase was: 38%
(from 7.4k to to 9.2k confirmed cases)
https://t.co/F86FFswU1j http
By far, this is the best coronavirus consolidation I've read: https://t.co/MYRZYMfEKi
As recently as the beginning of June the US and Canada had the same death rate.
While the US is unfortunately getting back to the rate from back then, Canada achieved a 20-fold reduction of the death rate at the same time.
https://t.co/wU7x3bOYk7 https:
Too many pieces about covid-19 and Sweden; not enough about Finland, which seems to have avoided a second wave entirely. https://t.co/BKUFzQ0YH0 https://t.co/zesJ2Pn2Tf -
John GraneyWhy are early containment measures in an epidemic important?
By slowing the rate of infection the peak is lower – and the number of people who are sick at the same time does not exceed the capacity of the healthcare system.
Now in our entry on #COVID19 -
07 Mar 20
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The COVID-19 outbreak is an unprecedented global public health challenge
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purpose of this article on COVID-19 is to aggregate existing research, refer to relevant data and allow readers to make sense of the published early research and data on the coronavirus outbreak.
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Our World in Data we focus on the world’s largest problems and how to make progress against them.
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disease is called coronavirus disease. It is abbreviated as COVID-19
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virus is called severe acute respiratory syndrome coronavirus 2 and it is abbreviated as SARS-CoV-2.
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or “the COVID-19 virus” when communicating with the public
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Coronaviruses are a group of viruses that are common in humans and are responsible for up to 30% of common colds.
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The time from symptom onset to death ranges from 2 to 8 weeks for COVID-1
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some countries – like China and Korea – have very substantial countermeasures in place, and new daily confirmed deaths have declined
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What we would want to know but do not know: the doubling time of total cases
What we want to know is the total number of COVID-19 cases.
But since not everyone is tested it is only the number of known cases (confirmed cases + suspected cases) that we can know. Since the coronavirus disease has only mild symptoms for most (see below) it is likely the case that the number of confirmed and suspected cases is smaller than the number of total cases.
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volunteer editors of Wikipedia, however, have calculated the doubling time of cases of COVID-19 and update these calculations daily. They can be found
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Based on the global WHO data up to and including 6th March 2020, the doubling time for COVID-19 is as follows:
Doubling time for the global number of cases (including China): 21 days
Doubling time for the global number of cases (excluding China): 4 days
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Under exponential growth 500 cases grow to more than 1 million cases after 11 doubling time
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here is a poor example from the BBC. It is crucial to know how common the various symptoms of COVID-19 ar
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COVID-19 infection seems to rarely cause a runny nose.
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develop signs and symptoms, including mild respiratory symptoms and fever, on an average of 5-6 days after infection
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mean incubation period is 5 to 6 days, the WHO adds that the incubation period can vary in a wide range of between 1 to 14 day
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On average the disease lasts two weeks.
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severe and critical cases it is 3 to 6 weeks according to the same study
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The starting point for each country is the day that particular country had reached 5 total confirmed deaths from COVID-19.
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What we want to know is the risk of dying once you are infected with COVID-19.
As of early March 2020, this is not known to researchers,
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Current COVID-19 test coverage estimates
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As of the 6th March 2020, the global Case Fatality Rate for COVID-19 are as follows.31
Case fatality rate globally = 3.44%
[based on 98192 confirmed cases and 3380 deaths]Case fatality rate in China: 3.77%
[based on 80711 confirmed cases and 3045 deaths]Case fatality rate for the rest of the world: 1.9%
[based on 17481 and 335 deaths] -
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Case fatality rate of COVID-19 by preexisting health conditions
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Case fatality rate of COVID-19 compared to other diseases
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case fatality rates from COVID-19 compare to those of the seasonal flu?
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even a disease which is mild in most cases can kill a large number of people
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“about a quarter of severe and critical cases require mechanical ventilation
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If someone is infected with COVID-19, how likely is that person to die?
This question is simple, but surprisingly hard to answer.
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“case fatality rate”, the “crude mortality rate”, and the “infection fatality rate”, and why they’re all different.
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the “case fatality rate”, the most commonly discussed measure of the risk of dying, is not the true answer to the question, for two reasons. One, it relies on the number of confirmed cases, and many cases are not confirmed; and two, it relies on the total number of deaths, and with COVID-19, some people who are sick and will die soon have not yet died.
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extremely difficult to make accurate estimates of the true risk of death.
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in fast-moving situations like COVID-19, probably not even very close to – the true risk for an infected person.
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crude mortality rate – sometimes called the crude death rate – measures the probability that any individual in the population will die from the disease; not just those who are infected, or are confirmed as being infected
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Spanish flu pandemic in 1918. One estimate, by Johnson and Mueller (2002), is that that pandemic killed 50 million people.29 That would have been 2.7% of the world population at the time. This means the crude mortality rate was 2.7%.
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2.7% is often misreported as the case fatality rate – which is wrong, because not everyone in the world was infected with Spanish flu. If the crude mortality rate really was 2.7%, then the case fatality rate was much higher – it would be the percentage of people who died after being diagnosed with the disease.
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media tend to talk about the CFR as if it’s a single, steady number, an unchanging fact about the disease. But it’s not a biological constant; instead, it reflects the severity of the disease in a particular context, at a particular time, in a particular population.
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For instance, older populations would expect to see a higher CFR from COVID-19 than younger ones.
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One has to understand the measurement challenges and the definitions to interpret estimates of the CFR for COVID-19, particularly those relating to an ongoing outbreak
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US seasonal flu has a case fatality rate of approximately 0.1% – much lower than the current CFR for COVID-19.
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We compare the CFR during the outbreak of COVID-19 in China with the CFR of the US seasonal flu in 2018-19.
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case fatality rate for COVID-19, measured in the cited study, was 2.3%.
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case fatality rate of the seasonal flu in the US is around 0.1% to 0.2%
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US data is sourced from the US CDC. Here we present an upper and lower estimate for the 2018-19 flu season
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two figures reflect whether we look at the percentage of deaths out of the number of symptomatic illnesses (giving us 0.1%), or the number of medical visits (giving us 0.2%)
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read more about how it derives its annual flu figures here
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some of the biases which tend to underestimate the actual number of cases have been corrected for. This is not the case for the COVID-19 figures, so it may be an unfair comparison
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CFR based on symptomatic illnesses, and those based on medical visits (shown in square brackets)
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likely that the fairest comparison to COVID-19 lies somewhere between these two values.
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This is what happened during the SARS-CoV outbreak in 2003: the CFR was initially reported to be 3-5% during the early stages of the outbreak, but had risen to around 10% by the end
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paper compares the CFR of different countries – showing a very broad range from 0.2% in Germany to 7.7% in Italy.
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CFR is a particularly poor metric to understand mortality risk with a small sample size.
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ssterrenburgFor those who died from #COVIDー19 it took 2 to 8 weeks from onset to death.
We need to know what this means for the case fatality rates that are in the news now.
In our work on COVIDー19 we explain what we can and cannot say based on current stats https:
Symptoms Of #COVID19:
Aantal doden door #Corona:
#Nederland vergeleken met aantal andere landen.
Mooie interactieve grafieken.
#Ouworldindata is met zijn onuitputtelijke schat aan feitelijke info een zegen voor de mensheid.
Fijn in tijden van fakenieuws!
https://t.co/AUiwjbsiCorona Nederland Ouworldindata COVID19 fever cough COVIDー19 vantwitter
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06 Mar 20
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Donna BillsWhat do we know about the mortality risk of COVID-19?
We extended our entry on the coronavirus outbreak to explain what we know – and what we do not know – based on the available data and research.
https://t.co/wU7x3bxmVx
#Coronavirus #Covid19 -
manjarin69Coronavirus coverage shows why it is so very bad that much of the media does not report data.
The coverage of the BBC on symptoms gives you *no* idea that some are very common – fever (90%) & dry cough (67%) – and others not.
We hope we are more hel -
05 Mar 20
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