@jnathanielp @paularcurtis https://t.co/kAyr3w4pD8 turns out there's a minimal difference but it's the opposite
https://t.co/PT8mqrKbwT
The whole thing comes from a small study done by a german doctor in the late 1800's!
下水の第一波と第二波の差はこんなもの?意外と報告数の変化と差が無い
論文
Early Warning of COVID-19 in Tokyo via Wastewater-based Epidemiology: How Feasible It Really Is?
Yifan Zhu, Wakana Oishi, Mayuko Saito, Masaaki Kitajima, Daisuke Sano
https://t.co/O6gRUYHsC6