西班牙最新研究显示,在中国发现新冠疫情前九个月就有了冠状病毒

据路透社马德里以题为“西班牙研究显示,2019年3月污水样本中发现冠状病毒痕迹”的报道,西班牙巴塞罗那大学8月28日宣布,西班牙病毒学家在2019年3月收集的巴塞罗那废水样本中发现了新型冠状病毒的踪迹,这是在中国发现新冠肺炎病的九个月前。
365j.me - 西班牙最新研究显示,在中国发现新冠疫情前九个月就有了冠状病毒

据路透社马德里以题为“西班牙研究显示,2019年3月污水样本中发现冠状病毒痕迹”(Coronavirus traces found in March 2019 sewage sample, Spanish study shows)报道,8月28日,西班牙巴塞罗那大学表示,西班牙病毒学家在2019年3月收集的巴塞罗那废水样本中发现了新型冠状病毒的踪迹,这是在中国发现新冠肺炎病的九个月前。

如果在西班牙这么早就发现了病毒基因组,这将意味着这种疾病可能比科学界想象的要早得多。

巴塞罗那大学的研究小组从今年4月中旬开始测试废水,以确定潜在的新疫情,并决定对旧样本进行测试。

他们于2020年1月15日首次在巴塞罗那发现了这种病毒,比第一例病例在巴塞罗那被正式报道的时间早了41天。

然后,他们对2018年1月至2019年12月采集的样本进行了测试,发现其中一个样本中存在病毒基因组,该样本于2019年3月12日采集。

该大学援引研究负责人阿尔伯特·博施的话说:“非典病毒的感染率很低,但呈阳性。”这项研究已提交同行评审。

西班牙公共健康和卫生管理协会的琼·拉蒙·维拉比博士告诉路透社记者,现在下结论还为时过早。他说:“当它只是一个结果时,你总是需要更多的数据,更多的研究,更多的样本来证实它,并排除实验室错误或方法问题。”

由于该病毒与其他呼吸道感染相似,因此有可能出现假阳性。比利亚尔比说:“但这的确很有趣,很有启发性。”

西班牙病毒学家协会主席博施说,即使在一月份进行早期检测,也可以提高对这种流行病的反应。相反,患者很可能被误诊为普通流感,在采取措施之前导致了社区传播。

荷兰KWR水资源研究所的格特詹·梅德玛教授的团队于今年2月开始对废水进行冠状病毒测试,他建议巴塞罗纳团队需要重复测试,以确认它确实是非典病毒(SARS-CoV-2)。

艾玛·皮内多、内森·艾伦和因蒂·兰杜罗报道

该报道英文原文如下:

MADRID (Reuters) – Spanish virologists have found traces of the novel coronavirus in a sample of Barcelona waste water collected in March 2019, nine months before the COVID-19 disease was identified in China, the University of Barcelona said on Friday.

The discovery of virus genome presence so early in Spain, if confirmed, would imply the disease may have appeared much earlier than the scientific community thought.

The University of Barcelona team, who had been testing waste water since mid-April this year to identify potential new outbreaks, decided to also run tests on older samples.

They first found the virus was present in Barcelona on Jan. 15, 2020, 41 days before the first case was officially reported there.

Then they ran tests on samples taken between January 2018 and December 2019 and found the presence of the virus genome in one of them, collected on March 12, 2019.

“The levels of SARS-CoV-2 were low but were positive,” research leader Albert Bosch was quoted as saying by the university.

The research has been submitted for a peer review.

Dr Joan Ramon Villalbi of the Spanish Society for Public Health and Sanitary Administration told Reuters it was still early to draw definitive conclusions.

“When it’s just one result, you always want more data, more studies, more samples to confirm it and rule out a laboratory error or a methodological problem,” he said.

There was the potential for a false positive due to the virus’ similarities with other respiratory infections.

“But it’s definitely interesting, it’s suggestive,” Villalbi said.

Bosch, who is president of the Spanish Society of Virologists, said that an early detection even in January could have improved the response to the pandemic. Instead, patients were probably misdiagnosed with common flu, contributing to community transmission before measures were taken.

Prof. Gertjan Medema of the KWR Water Research Institute in the Netherlands, whose team began using a coronavirus test on waste water in February, suggested the Barcelona group needs to repeat the tests to confirm it is really the SARS-CoV-2 virus.

Spain has recorded more than 28,000 confirmed deaths and nearly 250,000 cases of the virus so far.

(Reporting by Emma Pinedo, Nathan Allen and Inti Landauro, writing by Inti Landauro and Andrei Khalip, Editing by Angus MacSwan)

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