Jammer voor de wetenschap dat in de Volksrepubliek dit soort onderzoek niet mogelijk is. 

Al 2 maanden voor 1e besmetting sporen van corona in Italiaans rioolwater: "Ziekenhuisopnames waren topje van ijsberg" | VRT NWS: nieuws
https://t.co/RGeRwFXMcP
Too bad for the knowledge that in the People's Republic this kind of research is not possible.

Al 2 months before 1st contamination traces of sewage corona in Italian: "Hospitalizations were tip of iceberg" | VRT NWS: news
https://t.co/RGeRwFXMcP
A Belgian doctor, General Practitioner, who promotes agreeing to disagree.
A Belgian doctor, General Practitioner, who Promotes agreeing to disagree.