@loscharlos @LongCovidNYC @CDCgov One example, San Francisco (bottom graph shown). Official cases are approximately 1/4 of where they were in January, but wastewater shows actual infections are even higher!
https://twitter.com/michaelzli...
@loscharlos@LongCovidNYC@CDCgov旧金山（下图）。官方病例约为1月份的1/4，但废水显示实际感染率更高！
https://twitter.com/michaelzli...