The epidemiology of reverse transmission of COVID-19 in Gansu Province, China

Abstract

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Community use of face masks and similar barriers to prevent respiratory illness such as COVID-19: a rapid scoping review

“…Several studies highlight potential problems of recall bias [27,38,45]. Other studies note that potential confounding factors were not explored [42,46,47].…”

Factors affecting perceived effectiveness of COVID-19 prevention measures among Filipinos during Enhanced Community Quarantine in Luzon, Philippines: Integrating Protection Motivation Theory and extended Theory of Planned Behavior

“…After the emergence of Middle East respiratory syndrome coronavirus (MERS-CoV) in Saudi Arabia and severe acute respiratory syndrome coronavirus (SARS-CoV) in China, a new SARS-like coronavirus was discovered last December 2019 ( Zhou et al, 2020 ). The virus was linked to a wholesale seafood market in Wuhan, China, when an unknown pathogen was identified by the local hospitals in a group of patients who are accustomed to pneumonia ( Zhu et al, 2020 , Fan et al, 2020 ). Adnan Shereen et al (2020) initially mentioned that patients who have been infected by the coronavirus in China might have gone to Wuhan where live animals were being sold.…”

The Epidemiology of COVID-19 in the Gansu and Jinlin Provinces, China

“…New cases of COVID-19 almost reached zero in Northern China within the period from late March 2020 to the middle of May 2020 because of the implementation of restrictive orders. In addition, the clinical interventions for COVID-19 patients were also effective and efficient in reducing morbidity and mortality, in addition to the restrictive quarantine approach (32). Consequently, the mortality rate in Northern China was only two in the Gansu (26) and Jilin Provinces (27).…”

“…As the epidemic progressively came under control in China, an alarmingly rapid spread of the virus occurred worldwide, and the epidemic became a pandemic. As the preferred place for receiving Chinese returnees by the Chinese authority, Lanzhou city has received a total of 311 evacuated Chinese citizens from Iran, amongst whom there has been 37 confirmed positive cases of COVID-19 infection, which were only discovered shortly after arrival in Lanzhou (32). Compared to the handling procedures utilized during the primary outbreak of COVID-19 in the Gansu province, the local government had gained substantially increased knowledge and experience in controlling the transmission of SARS-CoV-2 virus that they were able to apply during the secondary reverse transmission of COVID-19 (32).…”

“…As the preferred place for receiving Chinese returnees by the Chinese authority, Lanzhou city has received a total of 311 evacuated Chinese citizens from Iran, amongst whom there has been 37 confirmed positive cases of COVID-19 infection, which were only discovered shortly after arrival in Lanzhou (32). Compared to the handling procedures utilized during the primary outbreak of COVID-19 in the Gansu province, the local government had gained substantially increased knowledge and experience in controlling the transmission of SARS-CoV-2 virus that they were able to apply during the secondary reverse transmission of COVID-19 (32). Consequently, due to a substantially more organized level of preparation, local Gansu authorities were able to implement an effective approach in advance of the evacuation, involving high-level, streamlined cooperation among the departments of transportation, quarantine and hospitals, aiming to isolate, and quarantine for 14 days all potentially infected evacuees within designated hotels to prevent the potential risk of transmission of SARS-CoV-2 virus within the Chinese communities of origin of the evacuees.…”