| Autor: |
Jinjun Zhang, Fei Qin, Jianren Li, Sijia Tian, Jing Lou, Xuqin Kang, Huixin Lian, Shengmei Niu, Wenzhong Zhang, Yuguo Chen |
| Rok vydání: |
2020 |
| DOI: |
10.21203/rs.3.rs-96911/v1 |
| Popis: |
Background Millions of cases of the novel coronavirus disease 2019 (COVID-19) have been reported in the world. Although it is known that the air travel has the potential to spread SARS-CoV-2, the risk of in-flight transmission is unknown.Methods We enrolled all passengers and crew suspected of being infected with SARS-CoV-2, who bounded for Beijing on international flights. We specified the characteristics of all confirmed cases of COVID-19 infection and utilized Wells-Riley equation to estimate the infectivity of COVID-19 during air travel.Results We screened 4492 passengers and crew with suspected COVID-19 infection, verified 161 confirmed cases (mean age 28.6 years), and traced two confirmed cases who may have been infected in the aircraft. The estimated infectivity was 375 quanta/h (range 274-476), while the effective infectivity was only 4 quanta/h (range 2-5). The risk of per-person infection during a 13 hours air travel in economy class was 0.56‰ (95% CI 0.41‰-0.72‰). Conclusion We found that the universal use of face masks on the flight, together with the plane's ventilation system, significantly decreased the infectivity of COVID-19. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
