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Table 1 Annual domestic and imported DENV-2 cases using RT-qPCR for 2001–2020 serum samples in Guangzhou

From: Circulation of genotypes of dengue virus serotype 2 in Guangzhou over a period of 20 years

Year

2005

2010

2011

2012

2013

2014

2015

2016

2017

2018

2019

2020

total

DENV2

1

2

2

2

2

10

21

37

48

192

96

3

416

Domestic cases (percentage)

0

2 (100%)

0

0

2 (100%)

9 (90%)

17 (80.95%)

30 (81.08%)

41 (85.42%)

183 (95.31%)

86 (89.58%)

2 (66.67%)

372 (89.42%)

Imported cases (percentage)

1 (100%)

0

2 (100%)

2 (100%)

0

1 (10%)

4 (19.05%)

7 (18.92%)

7 (14.58%)

9 (4.69%)

10 (10.42%)

1 (33.33%)

44 (10.58%)

Bangladesh

0

0

0

0

0

0

0

1

1

0

0

0

0

Angola

0

0

1

0

0

1

2

3

1

2

3

0

0

Cambodia

0

0

1

0

0

0

0

0

2

0

0

0

0

Fiji

0

0

0

1

0

0

0

0

0

0

0

0

0

India

0

0

0

1

0

0

1

0

0

0

0

0

0

Indonesia

1

0

0

0

0

0

1

1

0

0

2

0

0

Malaysia

0

0

0

0

0

0

0

1

1

4

4

1

0

Maldives

0

0

0

0

0

0

0

1

0

0

0

0

0

Myanmar

0

0

0

0

0

0

0

0

2

0

0

0

0

Solomon Islands

0

0

0

0

0

0

0

0

0

1

0

0

0

Sri Lanka

0

0

0

0

0

0

0

0

0

1

0

0

0

Thailand

0

0

0

0

0

0

0

0

0

1

0

0

0

Vietnam

0

0

0

0

0

0

0

0

0

0

1

0

0