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Message from the Mayor about COVID-19 data dashboard development(2021.12.08 Mayor’s Press Conference)

Last updated date:2021/12/8

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I would like to promote the development of a dashboard of COVID-19 data to make data publicly available and create a basis for open discussion.
While it will soon be two years since the COVID-19 pandemic was declared, we have been able to gather lots of different data about it. Until now, some of that data had not been made publically available, or if it was, then only as a temporary data point on graphs pasted into images, and data for each ward was not always available. That is to say that the City of Yokohama never attempted to conceal any data; it was rather a fact that many issues, such as data sets identified as incomplete not being submitted, or the process for submission being overly cumbersome, that caused much of the delays in displaying the data. After nearly three months examining the issues with the relevant city departments and bureaus, I will today announce the results of those discussions.


First, I want to proactively promote the move to “open data” initiatives. So far, the data has included the age group and sex of new cases, but now will provide data by ward for each of the 18 wards. In addition, there are new data points for #2 through #6, such as for the number of patients recovering at home or the number of PCR tests, you will be able to see the current rate of positive cases identified by week based on age group, sex, ward, and PCT test. We are also looking to disclose data on the numbers of vaccinations and the vaccine supply, as well as the status of the health care system based on the total number of beds available and in use. We plan to allow the specific data to be made available to download in CSV format for anyone to use.
Secondly, we will develop a data dashboard. With detailed CSV data available, there are many graphs that can be made using Excel and other programs, but thanks to the hard work by the relevant departments, we have been able to make the data relatively easier to view online. In terms of new positive case numbers, we have been providing the data for different wards, by age group, and by sex, but only a daily graph of new cases was readily viewable on the city website. We hope to incorporate new data by age group, sex, and ward on data dashboards going forward. This is the daily data, but we plan to disclose data, for example, that would let you see how many new cases were men, or how many were in Nishi Ward, Naka Ward, Sakae Ward, and so on by ward. By the same token, using the graph for age groups, you can see a graph for residents in their 30s.
In addition, where the numbers of patients recovering at home were released once a week, we plan to add a graph showing daily changes, and also make it possible to filter by age group and ward. By providing the data via dashboard, then, you could, for example, select categories from a dropdown list, and download a CSV file with the data for a particular ward. The dashboard is almost completed, and we hope to have it ready to use to share data openly in the coming days. By making this kind of data available, we will now be able to provide the latest information about COVID-19.
New graphs will be added to show the numbers of patients recovering at home or in recovery facilities, vaccination rates by age group, as well as number of vaccinations and rate per each ward. Vaccination method will also be made available. We plan to disclose the proportion of individual versus mass vaccinations.


Presenting this data is something I have been examining since I took office, and I have been discussing this course of action with members of the City Council as well. I believe that making this data openly available is the way forward for governments, so I want to actively promote its implementation.

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