Abstract
We sequenced 10% of imported severe acute respiratory syndrome coronavirus 2 infections detected in travelers to Hong Kong and revealed the genomic diversity of regions of origin, including lineages not previously reported from those countries. Our results suggest that international or regional travel hubs might be useful surveillance sites to monitor sequence diversity.
Highlights
Hong Kong uses an elimination strategy to control coronavirus disease (COVID-19) that includes stringent travel restrictions to reduce the risk of introducing severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) into local communities (1)
The Study A total of 2,192 COVID-19–positive travelers arrived in Hong Kong during January 2020–March 2021 (Appendix 1 Figure 1, https://wwwnc.cdc.gov/EID/ article/27/10/21-1028-App1.pdf)
Stratifying cases by departure location (Appendix 1 Table 1) showed that 10 countries accounted for 77.8% of all imported cases during this period: United Kingdom (406), Philippines (318), India (309), Pakistan (245), Indonesia (149), United States (131), Nepal (75), Russia (40), France (33), and United Arab Emirates (25)
Summary
Hong Kong uses an elimination strategy to control coronavirus disease (COVID-19) that includes stringent travel restrictions to reduce the risk of introducing severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) into local communities (1). The Study A total of 2,192 COVID-19–positive travelers arrived in Hong Kong during January 2020–March 2021 (Appendix 1 Figure 1, https://wwwnc.cdc.gov/EID/ article/27/10/21-1028-App1.pdf). SARS-CoV-2 in Travelers to Hong Kong sequencing on 10% (221) of clinical samples collected (2,3) (Appendix).
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