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INFORMATION FOR

Seasonal or Epidemic Viruses Detected

Includes common respiratory, enteric (rotavirus, norovirus), and vector borne (WNV, POW) viruses.

Weekly Number of Positive Specimens (2006-2025) (a,b)

Week ending
RSV
Flu A
Flu B
SARS CoV-2 (f)
Paraflu (1,2,3,4)
Adeno
HMPV
Rhino
CoV
Entero
Parecho
Rota (c)
Noro
WNV (d)
Powassan (e)
Week ending
2025.06.21
2
3
1
27
20
2
18
46
0
1
0
1
0
0
0
2025.06.21
2025.06.14
4
1
0
24
24
1
8
57
0
1
0
0
0
0
0
2025.06.14
2025.06.07
1
8
2
20
26
2
13
50
2
0
0
1
1
0
0
2025.06.07
2025.05.31
0
6
2
31
22
1
14
79
5
1
0
0
1
0
0
2025.05.31
2025.05.24
1
3
4
11
15
3
25
51
1
0
0
1
1
0
0
2025.05.24
2025.05.17
5
5
8
23
17
2
25
45
5
0
0
2
4
0
0
2025.05.17
2025.05.10
2
1
15
39
15
3
20
48
6
2
0
1
3
0
0
2025.05.10
2025.05.03
5
6
16
29
8
2
28
42
6
0
1
4
2
0
0
2025.05.03
2025.04.26
5
9
35
28
11
5
17
44
8
0
0
5
2
0
0
2025.04.26
2025.04.19
12
6
54
55
5
3
22
45
9
0
0
1
5
0
0
2025.04.19
2025.04.12
13
23
90
48
10
5
32
52
9
0
0
0
6
0
0
2025.04.12
2025.04.05
8
27
110
52
2
4
16
40
8
0
0
0
10
0
0
2025.04.05
2025.03.29
27
33
117
60
6
2
14
38
19
1
0
0
5
0
0
2025.03.29
2025.03.22
15
60
153
80
5
2
10
41
23
0
0
0
16
0
0
2025.03.22
2025.03.15
25
92
143
82
2
5
5
38
28
0
0
1
6
0
0
2025.03.15
2025.03.08
35
169
118
75
6
4
9
27
32
0
0
2
14
0
0
2025.03.08
2025.03.01
35
190
73
75
3
1
5
14
30
0
0
2
9
0
0
2025.03.01
2025.02.22
43
349
45
83
3
4
6
12
27
0
0
0
14
0
0
2025.02.22
2025.02.15
50
520
48
102
1
7
5
11
40
0
0
0
14
0
0
2025.02.15
2025.02.08
79
751
60
118
2
8
1
19
47
1
0
1
26
0
0
2025.02.08

Footnotes

a : Samples tested may be obtained from patients at Yale New Haven Hospital, from other hospitals in the region, from community doctors’ offices or clinics

b : PCR is predominant test used, unless otherwise stated

c : Transitioned from ELISA to PCR on 5/16/2023

d : West Nile based on IgM in CSF or serum; rarely PCR. Number of positive patients, not samples. Week reflects when result reported.

e : Powassan based on IgM in CSF or serum. Number of positive patients, not samples. Week reflects when result reported.

f : SARS CoV-2 Testing started on 03/13/2020.

RSV, respiratory syncytial virus; HMPV, human metapneumovirus; CoV, coronaviruses 229E, OC43, NLS63 and HKU1

Influenza Type A Subtype results*

From 2017 to 2025
Week prior to
Total Subtyped
pdmH1
H3
2025.06.21*
0
0
0
2025.06.14*
3
3
0
2025.06.07*
3
3
0
2025.05.31*
0
0
0
2025.05.24*
1
1
0
2025.05.17*
1
0
1
2025.05.10*
0
0
0
2025.05.03*
3
2
1
2025.04.26*
3
2
1
2025.04.19*
2
2
0
2025.04.12*
7
5
2
2025.04.05*
10
8
2
2025.03.29*
13
9
4
2025.03.22
38
24
14
2025.03.15
58
44
14
2025.03.08
64
44
20
2025.03.01
96
63
33
2025.02.22
158
112
46
2025.02.15*
183
129
54
2025.02.08*
232
167
65

Footnotes

*Beginning with the week of 2025.02.01, subtyping includes Influenza A samples from other YNHHS hospitals.