南京市疾控中心副主任丁洁介绍，目前已完成本次疫情52个相关病例的病毒基因测序工作，均为德尔塔毒株，这些病毒的基因序列高度同源，提示是同一个传播链。本次疫情早期报告的保洁员病例，基因序列与7月10日由俄罗斯入境的一架CA910航班的一例输入病例的基因序列一致。

The recent coronavirus outbreak in the eastern Chinese city of Nanjing originated from a flight from Russia, said Ding Jie, deputy director of the municipal center for disease control and prevention, on Friday.

7月30日，南京市疾控中心副主任丁洁介绍，本次疫情源于一架俄罗斯入境的航班。

So far, the viral genome sequencing of 52 cases in the outbreak showed that the new cases were highly homologous, suggesting the same transmission chain, and all strains were found to be the highly infectious Delta variant, Ding told a press conference.

丁洁在新闻发布会上说，到目前52个病例的病毒基因组测序高度同源，这说明是同一个传播链，均为德尔塔毒株。

经调查发现，这些保洁员工参加了CA910航班的保洁工作，工作结束后，由于防护洗脱不规范，可能造成个别保洁人员感染，进而在保洁员的人群当中扩散传播。该公司的保洁员同时负责国内和国际航班的垃圾清运，机场的其他工作人员由于接触保洁员，或由于接触被污染的工作环境而造成感染。

Among them, the genetic sequence of the virus in earlier reported COVID-19 cases among cabin cleaners is consistent with an imported case reported on Flight CA910 arriving in Nanjing from Russia on July 10.

这些病例中，早前报告的航班保洁人员的病毒基因序列与7月10日俄罗斯飞抵南京的CA910航班上的一例输入病例一致。

It is believed that the cleaners did not strictly follow anti-epidemic guidelines after cleaning Flight CA910 and contracted the virus as a result. The infection further spread to other colleagues, who are also responsible for cleaning and transporting garbage on both international and domestic flights.

保洁人员在清理CA910航班后没有严格遵守防疫规范，造成感染。感染在其他同事中扩散，该公司的保洁员同时负责国内和国际航班的垃圾清运。

As of Thursday, Nanjing had reported 184 confirmed cases and one asymptomatic infection case since July 20. Related infections have also been reported in other provinces and municipalities, including Beijing, Sichuan, Hunan and Liaoning.

28日、29日两日，南京市日新增本土确诊病例两连降，均在20例以下。29日，南京市报告新增本土确诊病例13例。

文章来源：中国日报双语新闻