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Case Reports
. 2020 Feb;25(8):2000097.
doi: 10.2807/1560-7917.ES.2020.25.8.2000097.

Early transmission patterns of coronavirus disease 2019 (COVID-19) in travellers from Wuhan to Thailand, January 2020

Pilailuk Okada  1 , Rome Buathong  2 , Siripaporn Phuygun  1 , Thanutsapa Thanadachakul  1 , Sittiporn Parnmen  1 , Warawan Wongboot  1 , Sunthareeya Waicharoen  1 , Supaporn Wacharapluesadee  3 , Sumonmal Uttayamakul  2 , Apichart Vachiraphan  2 , Malinee Chittaganpitch  1 , Nanthawan Mekha  1 , Noppavan Janejai  1 , Sopon Iamsirithaworn  2 , Raphael Tc Lee  4 , Sebastian Maurer-Stroh  4   5
Affiliations
Case Reports

Early transmission patterns of coronavirus disease 2019 (COVID-19) in travellers from Wuhan to Thailand, January 2020

Pilailuk Okada et al. Euro Surveill. 2020 Feb.

Abstract

We report two cases of coronavirus disease 2019 (COVID-19) in travellers from Wuhan, China to Thailand. Both were independent introductions on separate flights, discovered with thermoscanners and confirmed with RT-PCR and genome sequencing. Both cases do not seem directly linked to the Huanan Seafood Market in Hubei but the viral genomes are identical to four other sequences from Wuhan, suggesting early spread within the city already in the first week of January.

Keywords: COVID-19; SARS-CoV-2; Wuhan; coronavirus; transmission; traveller.

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Conflict of interest statement

Conflict of interest: None declared.

Figures

Figure 1
Figure 1
Phylogenetic trees of Thai sequences in context of all coronavirus families (A) and structural mapping of mutations in the spike glycoprotein between SARS CoV (PDB:6CG [12]) and the current SARS-CoV-2 using YASARA [20] (B)
Figure 2
Figure 2
Within-outbreak SARS-CoV-2 sequence divergence and clusters, China and Thailand, January 2020
See this image and copyright information in PMC

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