Table 1 Number of isolates of avian influenza viruses per year and per site in South Korea in winters within November 2014 to January 2018.

From: Surveillance of avian influenza viruses from 2014 to 2018 in South Korea

Site

2014 to 2015

2015 to 2016

2016 to 2017

2017 to 2018

Total

% Positive per site over total positives (75)

Samples

Positives (%)*

Samples

Positives (%)*

Samples

Positives (%)*

Samples

Positives (%)*

Samples

Positives per site (%)

Cheonsuman

1330

36 (2.71%)

1500

3 (0.20%)

445

11 (2.47%)

260

2 (0.77%)

3535

52 (1.47%)

69.33

Eulsukdo

83

0 (0)

132

7 (5.30%)

215

7 (3.26%)

9.33

Geum River

336

0 (0)

112

1 (0.89%)

448

1 (0.22%)

1.33

Donglim Reservoir

336

3 (0.89%)

1053

5 (0.47%)

723

7 (0.97%)

2112

15 (0.71%)

20.00

Geocheonam Reservoir

448

0 (0)

448

0 (0)

0.00

Total

1413

36 (2.55%)

2172

6 (0.28%)

2190

24 (1.1%)

983

9 (0.92%)

6758

75 (1.11%)

100.00

  1. *Percent positivity per year are calculated based on the total number of isolates that year.