Sweden
|
1958
|
96 km NE of Stockholm (9 sites)
|
35
|
898
|
933
|
24
|
4
|
1
|
3
|
2.86
|
0.33
|
0.42
|
MBI*
|
[43]
|
Sweden
|
2003
|
Torö
|
106
|
9
|
115
|
1
|
1
|
–
|
–
|
–
|
–
|
0.87
|
RT-PCR
|
[17]
|
Sweden
|
2003
|
Combined central Sweden (3 sites)
|
167
|
23
|
190
|
1
|
1
|
–
|
–
|
–
|
–
|
0.53
|
RT-PCR
|
[17]
|
Sweden
|
2006
|
3 sites south of Vänern (T1-T3)
|
4380
|
220
|
220
|
4820
|
263
|
11
|
9
|
2
|
0.21
|
0.45
|
0.23
|
RT-PCR
|
[29]
|
Sweden
|
2004
|
South-western Sweden (T4)
|
2740
|
70
|
2810
|
144
|
7
|
6
|
1
|
0.22
|
1.43
|
0.25
|
RT-PCR
|
[29]
|
Sweden
|
2008
|
Hudiksvall (1)
|
30
|
6
|
5
|
41
|
14
|
0
|
0
|
0
|
0
|
0
|
0
|
RT-PCR
|
This study
|
Sweden
|
2008
|
Stenö/Källskär (2)
|
300
|
90
|
92
|
482
|
202
|
0
|
0
|
0
|
0
|
0
|
0
|
RT-PCR
|
This study
|
Sweden
|
2008
|
Gävle (3)
|
4
|
1
|
0
|
5
|
2
|
0
|
0
|
0
|
0
|
0
|
0
|
RT-PCR
|
This study
|
Sweden
|
2008
|
Trödje (4)
|
3
|
2
|
2
|
7
|
4
|
0
|
0
|
0
|
0
|
0
|
0
|
RT-PCR
|
This study
|
Sweden
|
2008
|
Skutskär (5)
|
29
|
11
|
15
|
55
|
27
|
1
|
0
|
1
|
0
|
3.85
|
1.82
|
RT-PCR
|
This study
|
Sweden
|
2008
|
Älvkarleby (6)
|
10
|
6
|
13
|
29
|
20
|
0
|
0
|
0
|
0
|
0
|
0
|
RT-PCR
|
This study
|
Sweden
|
2008
|
Borlänge (7)
|
7
|
4
|
4
|
15
|
9
|
0
|
0
|
0
|
0
|
0
|
0
|
RT-PCR
|
This study
|
Sweden
|
2008
|
Vikmanshyttan (8)
|
15
|
2
|
4
|
21
|
7
|
0
|
0
|
0
|
0
|
0
|
0
|
RT-PCR
|
This study
|
Sweden
|
2008
|
Östhammar (9*)
|
94
|
10
|
15
|
119
|
31
|
0
|
0
|
0
|
0
|
0
|
0
|
RT-PCR
|
This study
|
Sweden
|
2008
|
Norbo Finnmark (10)
|
11
|
11
|
12
|
34
|
24
|
0
|
0
|
0
|
0
|
0
|
0
|
RT-PCR
|
This study
|
Sweden
|
2008
|
Väddö (11*)
|
32
|
10
|
6
|
48
|
18
|
0
|
0
|
0
|
0
|
0
|
0
|
RT-PCR
|
This study
|
Sweden
|
2008
|
Skebobruk (12*)
|
40
|
13
|
19
|
72
|
34
|
0
|
0
|
0
|
0
|
0
|
0
|
RT-PCR
|
This study
|
Sweden
|
2008
|
Morga (13*)
|
300
|
31
|
55
|
386
|
114
|
0
|
0
|
0
|
0
|
0
|
0
|
RT-PCR
|
This study
|
Sweden
|
2008
|
Rimbo (14*)
|
8
|
2
|
4
|
14
|
7
|
0
|
0
|
0
|
0
|
0
|
0
|
RT-PCR
|
This study
|
Sweden
|
2008
|
Kapellskär (15*)
|
373
|
59
|
70
|
502
|
151
|
0
|
0
|
0
|
0
|
0
|
0
|
RT-PCR
|
This study
|
Sweden
|
2008
|
Kolarvik (16*)
|
158
|
57
|
49
|
264
|
115
|
1
|
1
|
0
|
0.63
|
0
|
0.38
|
RT-PCR
|
This study
|
Sweden
|
2008
|
Västerås (17*)
|
137
|
11
|
24
|
172
|
47
|
0
|
0
|
0
|
0
|
0
|
0
|
RT-PCR
|
This study
|
Sweden
|
2008
|
Strängnäs (18*)
|
37
|
27
|
22
|
86
|
51
|
0
|
0
|
0
|
0
|
0
|
0
|
RT-PCR
|
This study
|
Sweden
|
2008
|
Eskilstuna (19*)
|
27
|
4
|
7
|
38
|
13
|
0
|
0
|
0
|
0
|
0
|
0
|
RT-PCR
|
This study
|
Sweden
|
2008
|
Karlstad (20)
|
9
|
5
|
3
|
17
|
9
|
0
|
0
|
0
|
0
|
0
|
0
|
RT-PCR
|
This study
|
Sweden
|
2008
|
Värmdö (21*)
|
46
|
3
|
6
|
55
|
16
|
0
|
0
|
0
|
0
|
0
|
0
|
RT-PCR
|
This study
|
Sweden
|
2008
|
Askersund (22)
|
36
|
0
|
5
|
41
|
9
|
0
|
0
|
0
|
0
|
0
|
0
|
RT-PCR
|
This study
|
Sweden
|
2008
|
Herrhamra (23*)
|
196
|
31
|
36
|
263
|
99
|
4
|
1
|
3
|
0.51
|
4.48
|
1.52
|
RT-PCR
|
This study
|
Sweden
|
2008
|
Kapellängen, GS (24) (P)
|
24
|
21
|
2
|
47
|
25
|
0
|
0
|
0
|
0
|
0
|
0
|
RT-PCR
|
This study
|
Sweden
|
2008
|
Gamla gården, GS (25) (P)
|
5
|
2
|
2
|
9
|
4
|
0
|
0
|
0
|
0
|
0
|
0
|
RT-PCR
|
This study
|
Sweden
|
2008
|
Jönköping (26)
|
30
|
2
|
1
|
33
|
5
|
1
|
0
|
1
|
0
|
33.33
|
3.03
|
RT-PCR
|
This study
|
Sweden
|
2008
|
Västervik (27)
|
14
|
4
|
5
|
23
|
10
|
0
|
0
|
0
|
0
|
0
|
0
|
RT-PCR
|
This study
|
Sweden
|
2008
|
Änggårdsbergen (28)
|
31
|
0
|
1
|
32
|
3
|
0
|
0
|
0
|
0
|
0
|
0
|
RT-PCR
|
This study
|
Sweden
|
2008
|
Särö Västerskog (29) (P)
|
68
|
0
|
2
|
70
|
8
|
0
|
0
|
0
|
0
|
0
|
0
|
RT-PCR
|
This study
|
Sweden
|
2008
|
Combined central Sweden, 12 sites*
|
1448
|
258
|
313
|
2019
|
258
|
5
|
2
|
3
|
0.14
|
0.53
|
0.25
|
RT-PCR
|
This study
|
Sweden
|
2008
|
Combined Sweden, 29 sites
|
2074
|
425
|
481
|
2980
|
1074
|
7
|
2
|
5
|
0.10
|
0.55
|
0.23
|
RT-PCR
|
This study
|
Sweden
|
1958–2008
|
Combined Sweden, 4 studies, 45 sites
|
9396
|
2337
|
11733
|
1510
|
30
|
18
|
11
|
0.19
|
0.47
|
0.26
|
*/PCR
|
[17, 29, 43], this study
|
Finland
|
1957–1960, 1964
|
Archipelago of southern-western Finland
|
4932
|
391
|
389
|
8131
|
249
|
18
|
–
|
–
|
–
|
–
|
0.22
|
MBI**
|
[44]
|
Finland
|
1957-1960, 1964
|
Southern Finland
|
124
|
9
|
0
|
133
|
7
|
0
|
–
|
–
|
–
|
–
|
0
|
MBI**
|
[44]
|
Finland
|
1957–1960, 1964
|
South-eastern Finland
|
1308
|
39
|
84
|
1643
|
51
|
1
|
–
|
–
|
–
|
–
|
0.06
|
MBI**
|
[44]
|
Finland
|
1996–1997
|
Isosaari (Mjölö) island, Helsinki
|
69
|
70
|
139
|
20
|
1
|
–
|
–
|
–
|
–
|
0.72
|
RT-PCR
|
[45]
|
Finland
|
1996–1997
|
Åland islands
|
203
|
247
|
450
|
48
|
1
|
–
|
–
|
–
|
–
|
0.22
|
RT-PCR
|
[45]
|
Finland
|
1996–1997
|
Helsinki city parks
|
74
|
123
|
726
|
130
|
0
|
–
|
–
|
–
|
–
|
0
|
RT-PCR
|
[45]
|
Finland
|
2004
|
Kokkola (Karleby) archipelago (10 sites)
|
72
|
539
|
570
|
1181
|
122
|
13
|
–
|
–
|
–
|
–
|
1.10
|
RT-PCR
|
[13]
|
Finland
|
2003
|
Kumlinge
|
–
|
–
|
–
|
454
|
46
|
4
|
–
|
–
|
–
|
–
|
0.88
|
RT-PCR
|
[21]
|
Finland
|
2005
|
Isosaari (Mjölö) island, Helsinki
|
–
|
–
|
–
|
96
|
11
|
1
|
–
|
–
|
–
|
–
|
1.04
|
RT-PCR
|
[21]
|
Finland
|
2007
|
Turku (Åbo) archipelago
|
–
|
–
|
–
|
1039
|
315
|
1
|
–
|
–
|
–
|
–
|
0.10
|
RT-PCR
|
[21]
|
Finland
|
2005
|
Lappeenranta (Villmanstrand)
|
–
|
–
|
–
|
292
|
29
|
2
|
–
|
–
|
–
|
–
|
0.68
|
RT-PCR
|
[21]
|
Finland
|
2008
|
Närpiö (Närpes)
|
–
|
–
|
–
|
36
|
–
|
0
|
–
|
–
|
–
|
–
|
0
|
RT-PCR
|
[21]
|
Finland
|
1957–2008
|
Combined Finland, 4 studies, ≥ 27 sites
| | | |
14320
|
2490
|
42
|
–
|
–
|
–
|
–
|
0.29
|
**/PCR
|
[13, 21, 44, 45]
|
Norway
|
2003
|
Vest-Agder and Hordaland county
|
360
| | |
1
|
–
|
–
|
–
|
–
|
0.28
|
RT-PCR
|
[19]
|
Norway
|
2004
|
Vest-Agder and Hordaland county
|
450
| | |
1
|
–
|
–
|
–
|
–
|
0.22
|
RT-PCR
|
[19]
|
Norway
|
2009
|
Risør, Dalen (S1)
|
900
|
–
|
–
|
900
|
90
|
1
|
1
|
–
|
0.11
|
–
|
0.11
|
RT-PCR
|
[46]
|
Norway
|
2009
|
Arendal (S2–S3)
|
1350
|
–
|
–
|
1350
|
135
|
8
|
8
|
–
|
0.59
|
–
|
0.59
|
RT-PCR
|
[46]
|
Norway
|
2009
|
Mandal (S4–S5)
|
1520
|
–
|
–
|
1520
|
152
|
9
|
9
|
–
|
0.59
|
–
|
0.59
|
RT-PCR
|
[46]
|
Norway
|
2009
|
Lyngdal (S6–S7)
|
1860
|
–
|
–
|
1860
|
186
|
6
|
6
|
–
|
0.32
|
–
|
0.32
|
RT-PCR
|
[46]
|
Norway
|
2003–2009
|
Combined Norway, 2 studies, 9 sites
| | | |
6440
|
≥ 563
|
26
|
–
|
–
|
–
|
–
|
0.40
|
RT-PCR
|
[19, 46]
|
Denmark
|
1999
|
Bornholm (7 sites)
|
3843
|
215
|
4058
| |
2
|
–
|
–
|
–
|
–
|
0.05
|
RT-PCR
|
[47]
|
Denmark
|
2002–2003
|
Northern Zealand
|
50
|
25
|
30
|
105
|
3
|
1
|
1
|
–
|
2.00
|
–
|
0.95
|
RT-PCR
|
[48]
|
Denmark
|
2002–2003
|
3 different sites
|
62
|
62
|
9
|
0
|
–
|
–
|
–
| |
–
|
RT-PCR
|
[48]
|
Denmark
|
2011
|
Tokkekøb (3 sites, Jun.)
|
854
|
22
|
20
|
896
|
24
|
3
|
2
|
1
|
0.23
|
2.38
|
0.33
|
RT-PCR
|
[20]
|
Denmark
|
2011
|
Tokkekøb (3 sites, Sept.)
|
700
|
15
|
15
|
730
|
8
|
5
|
5
|
0
|
0.71
|
–
|
0.68
|
RT-PCR
|
[20]
|
Denmark
|
2011
|
Grib Forest
|
183
|
9
|
6
|
198
|
13
|
0
|
0
|
0
|
–
|
–
|
–
|
RT-PCR
|
[20]
|
Denmark
|
2011
|
Bornholm (3 sites)
|
738
|
37
|
41
|
816
|
13
|
0
|
0
|
0
|
–
|
–
|
–
|
RT-PCR
|
[20]
|
Denmark
|
1999–2011
|
Combined Denmark, 3 studies , ≥ 18 sites
| | | |
6865
|
≥ 70
|
11
|
–
|
–
|
–
|
–
|
0.16
|
RT-PCR
|
[20, 47, 48]
|
All four countries
|
1957–2011
|
All sites (≥ 99) included in references
| | | |
39358
|
3171
|
109
| | | | |
0.28
| |
[13, 17, 19–21, 29, 43–48], this study
|