3 ms·

The “detected in Barcelona sewer water in March 2019” stories from June 2020 didn’t seem to go anywhere either. https://www.reuters.com/article/us-health-coron

The “detected in Barcelona sewer water in March 2019” stories from June 2020 didn’t seem to go anywhere either. https://www.reuters.com/article/us-health-coronavirus-spain-science-idUSKBN23X2HQ https://www.reuters.com/article/us-health-coronavirus-spain-... Kept searching for followups, didn’t see anything till this: https://www.sciencedirect.com/science/article/pii/S0048969720352797 https://www.sciencedirect.com/science/article/pii/S004896972... That’s from 21 January 2021 and says: “So far unpublished data, analysing retained wastewater samples from Barcelona, Spain, taken in March 2019 showed positive RT-qPCR results for SARS-CoV-2 (Chavarria-Miró et al., 2020). The authors conclude that the virus was introduced to the Barcelona population due to global travel and remained undetected.” So as of then, still unpublished.

kergonath 6y ago
Yeah what I have seen about the Barcelona samples was not very convincing at the time, but then I am not an epidemiologist and I’d be happy to read more. The French study has just been published last week [0]. It is based on a vast cohort study in which serum samples were collected regularly. They tested older samples and found some anti-SARS-CoV-2 antibodies. The article also mentions an Italian study with similar results [1]. [0] https://link.springer.com/article/10.1007/s10654-020-00716-2 https://link.springer.com/article/10.1007/s10654-020-00716-2 [1] https://journals.sagepub.com/doi/10.1177/0300891620974755 https://journals.sagepub.com/doi/10.1177/0300891620974755