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Errors found in Tokyo count of COVID-19 cases, cumulative total increased by 76

  • May 11, 2020
  • , NHK digital , 11:47 p.m.
  • JMH Translation

The Tokyo Metropolitan Government (TMG) has announced that it has found errors in the number of coronavirus cases in Tokyo. The errors were due to cases not being reported by public health centers and cases being counted more than once. As a result, the cumulative number of cases in Tokyo was increased by 76 to 4,959 cases.


TMG tallies the number of infections based on reports from public health centers. Unreported cases and duplicate cases were found as a result of a detailed examination by the TMG.


Specifically, there were 111 cases which were not included in reports from public health centers, and there were 35 cases which were counted more than once. With the addition of the overlooked cases and the elimination of duplicate reports, the cumulative number of cases has increased by 76 cases.


It was previously announced that the cumulative number of cases in Tokyo through May 11 was 4,883 people. With the addition of the 76 cases, the cumulative number of cases is now 4,959.


TMG knew of the errors around April 20, before the Golden Week holidays in early May. The announcement was made on May 11, though, because the detailed examination required some time.


According to the TMG, the errors are due to the fact that there has been no established database and the fact that public health centers were overburdened. The TMG and public health centers will create a new database to prevent recurrence of such errors.

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