Volume 27, Number 5—May 2021
Dispatch
Introduction of ORF3a-Q57H SARS-CoV-2 Variant Causing Fourth Epidemic Wave of COVID-19, Hong Kong, China
Figure 1
![Timeline of COVID-19 cases during fourth epidemic, September 9–October 19, 2020, Hong Kong, China. Asymptomatic cases occurred in patients A1–A3, B1, B2, BB4, BB12, BB13, BB15, C3, C4, C7, and C9. Symptomatic cases occurred among patients A4, BB1–BB3, BB5–BB11, BB14, C1, C2, C5, C6, and C8. COVID-19, coronavirus disease; RT-PCR, reverse transcription PCR.](/eid/images/21-0015-F1.jpg)
Figure 1. Timeline of COVID-19 cases during fourth epidemic, September 9–October 19, 2020, Hong Kong, China. Asymptomatic cases occurred in patients A1–A3, B1, B2, BB4, BB12, BB13, BB15, C3, C4, C7, and C9. Symptomatic cases occurred among patients A4, BB1–BB3, BB5–BB11, BB14, C1, C2, C5, C6, and C8. COVID-19, coronavirus disease; RT-PCR, reverse transcription PCR.
1These first authors contributed equally to this article.
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Page updated: April 22, 2021
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