Tokyo begins sewage study for signs of COVID-19 spread
Japan Times -- May 14
The Tokyo Metropolitan Government Wednesday began a study into whether sewage samples can be used to detect signs of a spread of novel coronavirus infections.

To prepare for an expected second wave of COVID-19 infections, the metropolitan government aims to establish a method to analyze sewage for the virus in cooperation with the Japan Society on Water Environment.

Similar research has already started in the United States and France.

The metropolitan government will collect 300 milliliters of treated and untreated sewage samples once a week at 15 sewage treatment plants in the nation’s capital.

The samples will be frozen and stored until ways to extract the coronavirus and analyze it are established. Samples for the research will be collected until the coronavirus state of emergency is lifted.

東京都は、下水に含まれる新型コロナウイルスの量から感染の実態を調べる調査を13日から始めました。感染拡大の第2波の兆候などをつかみたいとしています。  東京都は下水に新型コロナウイルスがどれだけ含まれているか調べるため、港区内にある下水処理施設で水を採取しました。採取した水は渋谷区や港区などから流れてくる下水で、冷凍保存され、分析する方法が開発され次第、ウイルスの量を調べるということです。感染者の便にはウイルスが含まれるとみられ、都は下水を調べることで感染がどれだけ広がっているかの指標が得られるとしています。下水は都内の15カ所で採取することにしていて、今後、定期的に調べることで感染拡大の第2波の兆候などをつかみたいとしています。
News sources: Japan Times, ANNnewsCH
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