COVID FRANCE. Coronavirus figures, Tuesday, October 19, 2021

COVID FRANCE. Coronavirus figures, Tuesday, October 19, 2021
COVID FRANCE. Coronavirus figures, Tuesday, October 19, 2021

COVID ASSESSMENT. The latest Covid figures in France show just under 6,000 cases in 24 hours, this Tuesday, October 19. An increase in figure compared to last Tuesday …

The coronavirus epidemic has progressed by 5,934 additional cases on October 19, 2021. This is 4,877 more cases than yesterday but also 54 more than last Tuesday. A progression confirming the trend of the last few days which raises fears of a restart of the epidemic. The 7-day average goes to 4647 cases recorded daily against 4640 yesterday and the incidence rate to 48.17 cases per 100,000 inhabitants in France currently (48.49 yesterday). The number of deaths recorded in 24 hours in hospital is 39 deaths (excluding nursing homes), or 2 less than yesterday and 14 less than last Tuesday.

In hospitals, there are currently 6,483 patients hospitalized for Covid-19 (up 15 from yesterday) while 1,046 people are in intensive care (-3). Over the past 24 hours, 286 patients have been admitted to hospital, 9 more than the day before and 32 more compared to last Tuesday. 63 intensive care admissions were recorded, 4 less than yesterday and 5 less than last Tuesday.

Here are the latest official data available on Covid-19 in France according to the daily reports from Public Health France and Data.gouv, based on data from SI-DEP tests, hospital data and feedback from medico-social establishments, including the Ehpad. Many details are necessary to fully understand these figures. They are detailed below the table:

Here is the number of cases of Covid-19, deaths, hospitalizations, resuscitations and healings observed more or less compared to the previous report (generally the day before). Latest data available in France according to the daily reports from Public Health France and Data.gouv:

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New cases of covid, positivity rate of tests, proportion of the population tested … Internet users suggest that you consult the data on the evolution of the epidemic in your town free of charge. See

From daily data on the coronavirus in France, we have developed several curves which allow us to observe the evolution of the virus according to the number of confirmed cases, the number of hospitalizations and patients in intensive care, the number of deaths in hospital and total deaths and the number of returns home, assimilated to cures.

For each graph, the curve represents the total (eg: total of cases, current hospitalizations) while the bars correspond to daily changes (balances of hospitalizations each day, new deaths, etc.).

Details on the number of cases: Public Health France specifies that “the data can be very variable depending on the screening activities (reduction in activities on weekends for example) and the time taken to return the results” (generally 24 to 48 hours). Several changes in the method of counting positive tests also affected the counting of cases:

  • The government and Public Health France changed their method of collecting data on test results in mid-May 2020, with the SI-DEP project. The figures recorded before and after May 13, 2020 are therefore not completely comparable. Both the quantity and the nature of the tests carried out have changed considerably. From a few thousand tests, France has gone to more than 1 million tests each week then to 2 million at the beginning of November, inevitably impacting the figures. In addition, at the height of the crisis in March / April 2020, the tests mainly concerned seriously ill people, generally admitted to hospital, putting aside all patients with no or few symptoms. The actual number of Covid-19 cases in France was therefore quite significantly higher than the estimated number of confirmed cases during this period.
  • Since mid-November 2020, the number of positive tests includes, in addition to PCR tests, the results of antigen tests.
  • A correction of duplicates was made by public health France on May 20, 2021. While there were more than 5.9 million cases in France since the start of the epidemic, this figure has been revised to nearly 5.57 million, or 348,846 fewer cases. A very visible correction on the curve above. Others “incidents” on the flow of data have been reported several times by Public Health France.

Clarification on hospitalizations: We must clearly distinguish here the evolution of the total number of patients hospitalized at an instant T and new hospitalizations, in other words new admissions to the hospital each day (gross). In one case, it is a balance, which takes into account admissions, but also discharges from the hospital (cures or death). In the other, we only talk about new admissions to the hospital or intensive care unit for Covid over a day. On weekends, hospital data are sometimes taken from the Géodes site of Public Health France and are not consolidated data.

Clarification on the number of deaths: since the deconfinement of May 2020, Public Health France no longer updates the results in nursing homes on a daily basis. This report was reported every week at the end of the summer, then several times a week to finally stabilize in the fall: now the data from nursing homes (cases and deaths) go back once or twice a week. We therefore initially preferred to erase the number of daily deaths in nursing homes so as not to bias the graphs. At the request of several readers, since November 13, we again display the updates of deaths in nursing homes (dark gray bars) which causes artificial peaks during the updates. Errors and data corrections have also been reported on several occasions by Public Health France since mid-March 2020, sometimes leading to overestimates generally followed by negative trends in the number of deaths.

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The Ministry of Health also calculates, from the raw data, a series of statistics on the progression of Covid-19 in the country. Four particularly important indicators are presented below: the positivity rate of RT-PCR tests, the incidence rate, the number of effective reproductions and the occupancy rate of intensive care beds. If the first and the last are easily understandable (percentage of positive tests out of the total number of tests carried out and percentage of intensive care beds occupied according to the initial capacities of the country), the other two deserve a definition.

The incidence rate, represented by the second curve, is considered a key indicator of the virulence of the virus. This is the number of new cases of coronavirus diagnosed by PCR test that have occurred over the past 7 days. This figure is related to the number of inhabitants, ie a rate expressed per 100,000 inhabitants. The reproduction number (R) corresponds to the average number of people infected by a patient. If this figure is greater than 1, it means that a person with Covid-19 is infecting more than one other person on average currently and therefore that the disease is progressing.

If you don’t see the infographic, click here

Details on the positivity rate and the incidence rate: Public Health France changed its calculation method on its main indicators which are the incidence rate and the test positivity rate on December 8, 2020. The addition of antigenic tests in the first indicator then mechanically inflated the result of the calculation. . The incidence then went from 86 cases per 100,000 inhabitants in France to more than 100 cases per 100,000 inhabitants in our curves above. The positivity rate has dropped drastically: while it seemed to be stagnating around 10.7% the previous days, it then fell by more than 4 points. The reason this time comes from the counting of negative tests: if the same person has performed several tests within 60 days and these are negative, each of them is now counted. Previously, if a person tested negative multiple times in a row within 60 days, only the first test was counted. It was only when he tested positive that his situation changed.

Public Health France explained in a press release that this new calculation method is more precise because it takes into account the “prevalence of the virus in the population tested”. “Today, as the epidemic continues, it is common for the same person to perform several tests, especially when the previous ones were negative. In addition, knowledge has evolved and the risk of reinfection, which is today considered very weak but possible after 60 days, must be able to be identified “, writes the health agency.

Many other graphs as well as maps have been produced by scientists and by recognized journals to attempt to observe as closely as possible the trajectory of the coronavirus epidemic in the world and to compare the evolution of Covid-19 in the different countries affected. Among these curves, those developed using data from Johns Hopkins University in the United States, are among the most complete. These data are reproduced in particular by the Financial Times, Google Studio and many others with daily updates. Since mid-April, we have been basing ourselves on the data and graphs presented by the Our World in Data site, a joint project of researchers at the University of Oxford and the NGO Global Change Data Lab. These curves and this map show the number of cases and deaths compared to the population, ie per 1 million inhabitants.

Curve of the number of coronavirus cases per million:

Map of the number of coronavirus deaths per million:

Focusing on the total number of “gross” deaths in each country is indeed questionable, at a time when governments’ management of the pandemic and their results provoke many comparisons as well as lively debates. Reducing the number of deaths to the population is supposed to erase the demographic weight of each country, but on the other hand it does not erase the age pyramid which sometimes presents very significant differences from one country to another.

The other advantage of the curves and maps of the Our World in Data project is that they take into account the time lag in the emergence of the epidemic from one country to another. According to the graphs, the count starts from the first case or the 100th case detected in the territory, or even, for deaths, from the day from which 5 deaths were recorded in the country (day 0 on the x-axis).

 
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