China News Service, July 4th. According to the website of the Wuhan Municipal Health and Welfare Committee, on July 3, 2020, 0-24 o'clock, Wuhan reported 2 cases of imported asymptomatic infections abroad, both of which flew from Moscow to Beijing and landed in Wuhan. Chinese personnel of CA602 at Tianhe Airport.

  Asymptomatic infected person 1: female, 18 years old, Sichuan native, student of Moscow University. Arrived in Wuhan on June 29, the temperature was normal when entering the country, and the health declaration was asymptomatic. After being sampled by the customs for quarantine inspection, it is transferred to the centralized isolation medical observation point in Qiaokou District. On July 1, the nucleic acid test was positive. On July 2, he was transferred to Jinyintan Hospital for isolation and further examination. The blood routine and chest CT results were normal. The serum antibody IgM was negative and IgG was positive. On the same day, the provincial and municipal CDCs conducted a parallel nucleic acid test and the results were positive. On July 3, the expert group comprehensively judged that it was considered as a previous infection while in Russia and was diagnosed as an asymptomatic infection (imported abroad).

  Asymptomatic infected person 2: Male, 19 years old, from Xinjiang, student of Moscow University of Arts and Culture. Arrived in Wuhan on June 29, the temperature was normal when entering the country, and the health declaration was asymptomatic; after being sampled by the customs quarantine inspection, it was transferred to the centralized isolation medical observation point in Wuchang District. On July 1, the nucleic acid test was positive. On July 2, he was transferred to Jinyintan Hospital for isolation and further examination. The blood routine and chest CT results were normal. The serum antibody IgM was negative and IgG was positive. On the same day, the provincial and municipal CDCs conducted a parallel nucleic acid test and the results were positive. On July 3, the expert group comprehensively judged that it was considered as a previous infection while in Russia and was diagnosed as an asymptomatic infection (imported abroad).

  After the flight CA602 arrived in Han, all the personnel of the flight implemented closed-loop management measures such as customs quarantine, nucleic acid detection, point-to-point transshipment, and isolation diagnosis and treatment. Without self-activity in Wuhan, all medical observations were concentrated at isolation points.