Henry L Niman PhD

H5 confirmed
Jefferson County
Wisconsin
Commercial poultry

H5 confirmed
Walworth County
Wisconsin
Commercial poultry

The wild bird PA is circulating on at least 3 different backgrounds
Pennsylvania with wild bird NP
Arkansas with D1.1 NP
H5N5 initially in WI / IL (also has wild bird PB2)

NVSL has uploaded a large series of H5 seqs to GISAID
More Pennsylvania D1.1 with wild bird PA and NP but VERY complex
MANY reassortment combinations

A/snow goose/Pennsylvania/06298-001/2025 | 12/12/25
D1.1 NP PA reassortant
PA 2151
2145
A/american green-winged teal/Minnesota/01500-002/2025 | 9/6/25 H12N5
2144
A/blue-winged teal/USA/025843-018-R2/2025 H12N5

A/snow goose/Pennsylvania/06298-001/2025 | 12/12/25
D1.1 NP PA reassortant
PA 2151
2145
A/snow goose/Pennsylvania/06526-002/2025 | 12/15/25
A/red-tailed hawk/Pennsylvania/06526-001/2025 | 12/15/25
A/red-tailed hawk/Pennsylvania/06529-001/2025 | 12/17/25

A/snow goose/Pennsylvania/06298-001/2025 | 12/12/25
D1.1 PA NP Reassortant
NP 1497
1491
A/snow goose/Pennsylvania/06526-002/2025 | 12/15/25
A/duck/USA/024262-012/2025 H3N8
A/blue-winged teal/South Dakota/025426-005/2025 | 9/14/25 LPAI H4N8

A/snow goose/Pennsylvania/06298-001/2025 | 12/12/25
D1.1 PA NP Reassortant
NP 1497
1495
A/red-tailed hawk/Pennsylvania/06526-001/2025 | 12/15/25
1493
A/red-tailed hawk/Pennsylvania/06529-001/2025 | 112/17/25
1491
A/blue-winged teal/USA/025844-012-R2/2025 LPAI H4N6

A/snow goose/Pennsylvania/06298-001/2025 | 12/12/25
D1.1 PA NP Reassortant
NP 1497
1495
A/red-tailed hawk/Pennsylvania/06526-001/2025 | 12/15/25
1493
A/red-tailed hawk/Pennsylvania/06529-001/2025 | 112/17/25
1491
A/blue-winged teal/USA/025844-012-R2/2025 LPAI H4N6

Recent H5 detections on farms in Pennylvania has increased recently as seen in APHIS detections
These increases may be linked to novel H5N1 D1.1 reassortants uploaded to GISAID by NVSL

Recent H5 detections in wild birds in Pennylvania has increased recently as seen in APHIS detections
These increases may be linked to novel H5N1 D1.1 reassortants uploaded to GISAID by NVSL
2/2

Recent H5 detections in wild birds in Pennylvania has increased recently as seen in APHIS detections
These increases may be linked to novel H5N1 D1.1 reassortants uploaded to GISAID by NVSL
1/2

NVSL has uploaded wild bird H5N1 seqs to GISAID
The seqs incl location a collection dates
Included are novel D1.1 reassortants from
Dec 2015 collections in Pennsylvania like
A/snow goose/Pennsylvania/06298-001/2025 | 12/12/25
PA and NP segs from North American wild birds

H5 confirmed
Jefferson County
Wisconsin
Commercial poultry

H5 confirmed
Langley Township
British Columbia
Non-comercial

H5 confirmed
Langley Township
British Columbia
Commercial Poultry

H5 confirmed
Amhersberg
Ontario
Commercial poultry

H5 confirmed
Yarmouth County
Nova Scotia
Non-commercial
Non-poultry

Washington State University uploaded 10 sets of D1.1 Dairy seqs to GISAID with PB2 D701N collected in early 2025

UC Davis uploaded 69 sets of California seqs to GISAID collected between 2023-2025

Public Health Agency of Canada has uploaded 80 sets of H5N1 British Columbia seqs to GISAID
Nov/Dec 2025 collections
Largely D1.1
Closest to US Pacific Flyway D1.1 seqs

Location and collection date match
San Juan County WA
www.aphis.usda.gov/livestock-po...

NVSL uploaded 76 sets of H5N1 seqs to GISAID
Largely wild bird and poultry
w/ collection date and location
Largely D1.1
incl
A/raccoon/Washington/05425-001/2025 | 12/5/25
D1.1 w/ PB2 E627K

A/turkey/Washington/04434-001-v/2025 | 11/14/25
NS 938
A/Washington/2148/2025 | 11/10/25 2148 A/Ringed_Seal/NU/FAV-0410-3/2024 | 10/9/24
A/Ringed_Seal/NU/FAV-0410-2/2024 | 10/9/24 A/Northern_Fulmar/NU/FAV-0290-1/2024 | 10/4/24
937
A/northern_fulmar/Greenland/08238-1.01/2023

A/turkey/Washington/04434-001-v/2025 | 11/14/25 MP 982
A/Washington/2148/2025 | 11/10/25
981
A/Iceland gull/Iceland/2025AI03229/2025 | 3/7/25
A/Arctic fox/Iceland/2025AI03209/2025 | 1/25/25
A/Red_Kite/England/055216/2024 | 11/13/24
A/Barn_Owl/Scotland/014863/2025 | 2/19/25

A/turkey/Washington/04434-001-v/2025 | 11/14/25 NP 1497
A/Herring_Gull/NS/FAV-0188-10/2025 | 4/25/25
A/Ringed_Seal/NU/FAV-0410-2/2024 | 10/9/24
A/Herring_Gull/NS/FAV-0245-4/2024 | 4/5/24
A/Striped_Skunk/PEI/FAV-0130-1/2024 | 4/9/24
A/northern_fulmar/Greenland/08238-1.01/2023

A/turkey/Washington/04434-001-v/2025 | 11/14/25
PA 2151
2150
A/Washington/2148/2025 | 11/10/25
2148
A/Ringed_Seal/NU/FAV-0410-3/2024 | 10/9/24
A/Northern_Fulmar/NU/FAV-0290-1/2024 | 10/4/24
2147
A/Ringed_Seal/NU/FAV-0410-2/2024 | 10/9/24
2145
A/Herring_Gull/NL/FAV-0430-14/2023

A/turkey/Washington/04434-001-v/2025 | 11/14/25
PB1 2274
2273
A/Washington/2148/2025 | 11/10/25
A/Ringed_Seal/NU/FAV-0410-3/2024 | 10/9/24
A/Turkey/Iceland/2024AI05124/2024 | 12/3/24
A/northern_fulmar/Greenland/08238-1.01/2023
A/Sand_piper/Norway/2023-07-2521/2023 | 9/18/23

A/turkey/Washington/04434-001-v/2025 | 11/14/25
PB2 2280
A/Washington/2148/2025 | 11/10/25
2279
A/Ringed_Seal/NU/FAV-0410-3/2024 | 10/9/24
A/Northern_Fulmar/NU/FAV-0290-1/2024 | 10/3/24
A/Herring_Gull/NL/FAV-0430-14/2023 | 11/2/23
A/northern_fulmar/Greenland/08238-1.01/2023
2278

A/turkey/Washington/04434-001-v/2025 | 11/14/25
N5 1353
1352
A/Washington/2148/2025 | 11/10/25
A/Ringed_Seal/NU/FAV-0410-3/2024 | 10/9/24
A/Northern_Fulmar/NU/FAV-0290-1/2024 | 10/3/24
1351
A/Great_Black-Backed_Gull/NS/FAV-0188-9/2025 | 4/25/24