Henry L Niman PhD
@hlniman.bsky.social
H5 confirmed
North Perth
Ontario
Commercial poultry
North Perth
Ontario
Commercial poultry
December 31, 2025 at 5:00 PM
H5 confirmed
North Perth
Ontario
Commercial poultry
North Perth
Ontario
Commercial poultry
NVSL uploaded 32 sets of 2025 H5N1 Dairy and poultry seqs to GISAID
Largely D1.1 poultry
B3.13 dairy
Includes location and collection dates
Not in BLAST database yet
Largely D1.1 poultry
B3.13 dairy
Includes location and collection dates
Not in BLAST database yet
December 26, 2025 at 7:44 PM
NVSL uploaded 32 sets of 2025 H5N1 Dairy and poultry seqs to GISAID
Largely D1.1 poultry
B3.13 dairy
Includes location and collection dates
Not in BLAST database yet
Largely D1.1 poultry
B3.13 dairy
Includes location and collection dates
Not in BLAST database yet
H5N1 confirmations for
Washington backyard farms in
Nov/Dec include
Whatcom03
Snohomish12
Jefferson03
San Juan01
Island01
conspicuously absent
Grays Harbor01
Snohomish13
wahis.woah.org#/in-review/4...
Washington backyard farms in
Nov/Dec include
Whatcom03
Snohomish12
Jefferson03
San Juan01
Island01
conspicuously absent
Grays Harbor01
Snohomish13
wahis.woah.org#/in-review/4...
December 24, 2025 at 4:51 PM
H5N1 confirmations for
Washington backyard farms in
Nov/Dec include
Whatcom03
Snohomish12
Jefferson03
San Juan01
Island01
conspicuously absent
Grays Harbor01
Snohomish13
wahis.woah.org#/in-review/4...
Washington backyard farms in
Nov/Dec include
Whatcom03
Snohomish12
Jefferson03
San Juan01
Island01
conspicuously absent
Grays Harbor01
Snohomish13
wahis.woah.org#/in-review/4...
H5N5 EA/AM wild birds
confirmed in San Diego Co CA
2 Western Gulls
Pacific Flyway
Same strain designation as
2 Lesser Saups
Oconto WI
Mississippi Flyway
www.aphis.usda.gov/livestock-po...
confirmed in San Diego Co CA
2 Western Gulls
Pacific Flyway
Same strain designation as
2 Lesser Saups
Oconto WI
Mississippi Flyway
www.aphis.usda.gov/livestock-po...
Detections of Highly Pathogenic Avian Influenza in Wild Birds | Animal and Plant Health Inspection Service
View the latest information on detections of highly pathogenic avian influenza (HPAI) in wild birds.
www.aphis.usda.gov
December 24, 2025 at 4:22 PM
H5N5 EA/AM wild birds
confirmed in San Diego Co CA
2 Western Gulls
Pacific Flyway
Same strain designation as
2 Lesser Saups
Oconto WI
Mississippi Flyway
www.aphis.usda.gov/livestock-po...
confirmed in San Diego Co CA
2 Western Gulls
Pacific Flyway
Same strain designation as
2 Lesser Saups
Oconto WI
Mississippi Flyway
www.aphis.usda.gov/livestock-po...
H5 confirmed
Pierre-De Saurel
Non-commercial
Non-poultry
Pierre-De Saurel
Non-commercial
Non-poultry
December 24, 2025 at 4:02 PM
H5 confirmed
Pierre-De Saurel
Non-commercial
Non-poultry
Pierre-De Saurel
Non-commercial
Non-poultry
On December 17, the National Veterinary Services Laboratories (NVSL) completed whole genome sequencing and confirmed that the virus is H5N1 clade 2.3.4.4b genotype D1.1
two spillover events in Nevada and Arizona dairy
WI
new, separate spillover event
www.aphis.usda.gov/news/agency-...
two spillover events in Nevada and Arizona dairy
WI
new, separate spillover event
www.aphis.usda.gov/news/agency-...
Update: Genetic Sequencing Results for Wisconsin Dairy Herd Detection of Highly Pathogenic Avian Influenza | Animal and Plant Health Inspection Service
Contact: aphispress@usda.gov
www.aphis.usda.gov
December 23, 2025 at 4:18 AM
On December 17, the National Veterinary Services Laboratories (NVSL) completed whole genome sequencing and confirmed that the virus is H5N1 clade 2.3.4.4b genotype D1.1
two spillover events in Nevada and Arizona dairy
WI
new, separate spillover event
www.aphis.usda.gov/news/agency-...
two spillover events in Nevada and Arizona dairy
WI
new, separate spillover event
www.aphis.usda.gov/news/agency-...
A/dairy cow/Nebraska/024659-001/2025 | 9/8/25
H5N1 B3.13
PB2 2280
2280
A/dairy cow/Nebraska/024659-002/2025 | 9/8/25
A/dairy cow/Nebraska/024659-004/2025 | 9/8/25
A/dairy cow/Nebraska/024659-006/2025 | 9/8/25
A/dairy cow/Nebraska/024659-007/2025 | 9/8/25
H5N1 B3.13
PB2 2280
2280
A/dairy cow/Nebraska/024659-002/2025 | 9/8/25
A/dairy cow/Nebraska/024659-004/2025 | 9/8/25
A/dairy cow/Nebraska/024659-006/2025 | 9/8/25
A/dairy cow/Nebraska/024659-007/2025 | 9/8/25
December 23, 2025 at 4:06 AM
A/dairy cow/Nebraska/024659-001/2025 | 9/8/25
H5N1 B3.13
PB2 2280
2280
A/dairy cow/Nebraska/024659-002/2025 | 9/8/25
A/dairy cow/Nebraska/024659-004/2025 | 9/8/25
A/dairy cow/Nebraska/024659-006/2025 | 9/8/25
A/dairy cow/Nebraska/024659-007/2025 | 9/8/25
H5N1 B3.13
PB2 2280
2280
A/dairy cow/Nebraska/024659-002/2025 | 9/8/25
A/dairy cow/Nebraska/024659-004/2025 | 9/8/25
A/dairy cow/Nebraska/024659-006/2025 | 9/8/25
A/dairy cow/Nebraska/024659-007/2025 | 9/8/25
NVSL uploaded 28 sets of H5N1 Dairy seqs to GISAID including Sept seqs from Nebraska (B3.13)
closest to California
A/dairy cow/Nebraska/024659-001/2025 | 9/8/25
Have collection date and location
Not yet in BLAST database
closest to California
A/dairy cow/Nebraska/024659-001/2025 | 9/8/25
Have collection date and location
Not yet in BLAST database
December 22, 2025 at 10:35 PM
NVSL uploaded 28 sets of H5N1 Dairy seqs to GISAID including Sept seqs from Nebraska (B3.13)
closest to California
A/dairy cow/Nebraska/024659-001/2025 | 9/8/25
Have collection date and location
Not yet in BLAST database
closest to California
A/dairy cow/Nebraska/024659-001/2025 | 9/8/25
Have collection date and location
Not yet in BLAST database
H5 confirmed
North Perth
Ontario
Commercial poultry
North Perth
Ontario
Commercial poultry
December 22, 2025 at 3:24 PM
H5 confirmed
North Perth
Ontario
Commercial poultry
North Perth
Ontario
Commercial poultry
H5 confirmed
Abbotsford (2)
British Columbia
Commercial poultry
Abbotsford (2)
British Columbia
Commercial poultry
December 20, 2025 at 9:45 PM
H5 confirmed
Abbotsford (2)
British Columbia
Commercial poultry
Abbotsford (2)
British Columbia
Commercial poultry
H5 confirmed
North Perth
Ontario
Commercial poultry
North Perth
Ontario
Commercial poultry
December 20, 2025 at 9:08 PM
H5 confirmed
North Perth
Ontario
Commercial poultry
North Perth
Ontario
Commercial poultry
Note that the human H5N5 from a resident in Grays Harbor WA was A6 genotype, matching earlier H5N5 seqs in US, Canada, and Europe
All 8 segs of A6 is EA
However, the two recent H5N5 Lesser Scaups from Oconto WI are designated EA/AM indicating at least 1 segment is North American
All 8 segs of A6 is EA
However, the two recent H5N5 Lesser Scaups from Oconto WI are designated EA/AM indicating at least 1 segment is North American
December 20, 2025 at 8:50 PM
Note that the human H5N5 from a resident in Grays Harbor WA was A6 genotype, matching earlier H5N5 seqs in US, Canada, and Europe
All 8 segs of A6 is EA
However, the two recent H5N5 Lesser Scaups from Oconto WI are designated EA/AM indicating at least 1 segment is North American
All 8 segs of A6 is EA
However, the two recent H5N5 Lesser Scaups from Oconto WI are designated EA/AM indicating at least 1 segment is North American
IN BOAH adds four more H5 confirmed farms
December 20, 2025 at 8:15 PM
IN BOAH adds four more H5 confirmed farms
“We just walked out into our fields going to fix decoys, and there was just a snow goose sitting in our decoys. Walked up to it, and he didn’t run, didn’t fly. It just looked like a zombie,”
www.google.com/amp/s/www.kp...
www.google.com/amp/s/www.kp...
Redirect Notice
www.google.com
December 20, 2025 at 1:20 PM
“We just walked out into our fields going to fix decoys, and there was just a snow goose sitting in our decoys. Walked up to it, and he didn’t run, didn’t fly. It just looked like a zombie,”
www.google.com/amp/s/www.kp...
www.google.com/amp/s/www.kp...
Moderna Inc. will get as much as $54.3 million for a late-stage trial of its bird flu vaccine in a sign of how outside groups could help fill the void after the Trump administration slashed federal research grants
www.bloomberg.com/news/article...
www.bloomberg.com/news/article...
Moderna Gets Funding for Bird Flu Shot After HHS Ends Contract
Moderna Inc. will get as much as $54.3 million for a late-stage trial of its bird flu vaccine in a sign of how outside groups could help fill the void after the Trump administration slashed federal re...
www.bloomberg.com
December 18, 2025 at 1:40 PM
Moderna Inc. will get as much as $54.3 million for a late-stage trial of its bird flu vaccine in a sign of how outside groups could help fill the void after the Trump administration slashed federal research grants
www.bloomberg.com/news/article...
www.bloomberg.com/news/article...
a first-time detection in Island County and second detections in Jefferson and Lewis counties. These detections add to ongoing HPAI activity
agr.wa.gov/about-wsda/n...
agr.wa.gov/about-wsda/n...
News Releases | Washington State Department of Agriculture
agr.wa.gov
December 18, 2025 at 1:22 PM
a first-time detection in Island County and second detections in Jefferson and Lewis counties. These detections add to ongoing HPAI activity
agr.wa.gov/about-wsda/n...
agr.wa.gov/about-wsda/n...
H5 confirmed
Salmon Arm
British Columbia
Non-poultry
Non-commercial
Salmon Arm
British Columbia
Non-poultry
Non-commercial
December 18, 2025 at 2:34 AM
H5 confirmed
Salmon Arm
British Columbia
Non-poultry
Non-commercial
Salmon Arm
British Columbia
Non-poultry
Non-commercial
On December 9
deceased geese
Lower Nazareth Township
Northampton
birds died of avian influenza
same spot as a previous avian influenza outbreak in January 2025
Above confirms H5 in the more than 400 dead snow geese in current outbreak
Jan 2025 was H5N1
www.wfmz.com/news/area/le...
deceased geese
Lower Nazareth Township
Northampton
birds died of avian influenza
same spot as a previous avian influenza outbreak in January 2025
Above confirms H5 in the more than 400 dead snow geese in current outbreak
Jan 2025 was H5N1
www.wfmz.com/news/area/le...
Avian flu suspected in deaths of hundreds of snow geese at Northampton County quarry
On December 9, the deceased geese were located by game commission officials in Lower Nazareth Township.
www.wfmz.com
December 18, 2025 at 12:53 AM
On December 9
deceased geese
Lower Nazareth Township
Northampton
birds died of avian influenza
same spot as a previous avian influenza outbreak in January 2025
Above confirms H5 in the more than 400 dead snow geese in current outbreak
Jan 2025 was H5N1
www.wfmz.com/news/area/le...
deceased geese
Lower Nazareth Township
Northampton
birds died of avian influenza
same spot as a previous avian influenza outbreak in January 2025
Above confirms H5 in the more than 400 dead snow geese in current outbreak
Jan 2025 was H5N1
www.wfmz.com/news/area/le...
In addition to the 2 Lesser Scallops from Oconto Co WI serotyped as H5N5
3 Lesser Scallops with same collecction and testing dates are H5 (so far)
w/
1 Lesser Scallops
5 Mallards
subsequently collected from Oconto WI
H5 so far
all Hunter Harvest
www.aphis.usda.gov/livestock-po...
3 Lesser Scallops with same collecction and testing dates are H5 (so far)
w/
1 Lesser Scallops
5 Mallards
subsequently collected from Oconto WI
H5 so far
all Hunter Harvest
www.aphis.usda.gov/livestock-po...
December 17, 2025 at 1:42 PM
In addition to the 2 Lesser Scallops from Oconto Co WI serotyped as H5N5
3 Lesser Scallops with same collecction and testing dates are H5 (so far)
w/
1 Lesser Scallops
5 Mallards
subsequently collected from Oconto WI
H5 so far
all Hunter Harvest
www.aphis.usda.gov/livestock-po...
3 Lesser Scallops with same collecction and testing dates are H5 (so far)
w/
1 Lesser Scallops
5 Mallards
subsequently collected from Oconto WI
H5 so far
all Hunter Harvest
www.aphis.usda.gov/livestock-po...
H5 Control Zone
Newell County
Alberta
Newell County
Alberta
December 17, 2025 at 7:54 AM
H5 Control Zone
Newell County
Alberta
Newell County
Alberta
APHIS wild bird table has added
two Lesser Scallops
H5N5
Oconto Co
WI
Hunter Harvest
www.aphis.usda.gov/livestock-po...
two Lesser Scallops
H5N5
Oconto Co
WI
Hunter Harvest
www.aphis.usda.gov/livestock-po...
December 17, 2025 at 6:45 AM
APHIS wild bird table has added
two Lesser Scallops
H5N5
Oconto Co
WI
Hunter Harvest
www.aphis.usda.gov/livestock-po...
two Lesser Scallops
H5N5
Oconto Co
WI
Hunter Harvest
www.aphis.usda.gov/livestock-po...
H5 confirmed Pierce County Washington
South of Tacoma
Small mixed backyard flock
South of Tacoma
Small mixed backyard flock
December 17, 2025 at 6:14 AM
H5 confirmed Pierce County Washington
South of Tacoma
Small mixed backyard flock
South of Tacoma
Small mixed backyard flock
H5 confirmed
Pierce County Washington
South of Tacoma
Likely small backyard flock
Not in WSDA Table yet
agr.wa.gov/departments/...
Pierce County Washington
South of Tacoma
Likely small backyard flock
Not in WSDA Table yet
agr.wa.gov/departments/...
December 17, 2025 at 12:37 AM
H5 confirmed
Pierce County Washington
South of Tacoma
Likely small backyard flock
Not in WSDA Table yet
agr.wa.gov/departments/...
Pierce County Washington
South of Tacoma
Likely small backyard flock
Not in WSDA Table yet
agr.wa.gov/departments/...
deaths of hundreds of snow geese at a Northampton County quarry
Above describe suspected H5 deaths of snow geese in Eastern Pennsylvania
www.wgal.com/article/hund...
Above describe suspected H5 deaths of snow geese in Eastern Pennsylvania
www.wgal.com/article/hund...
Avian influenza suspected in deaths of hundreds of snow geese at Pa. quarry
Hundreds of snow geese found dead at a Northampton County quarry are suspected to have died from avian influenza, prompting a response from the Pennsylvania Game Commission.
www.wgal.com
December 16, 2025 at 4:12 PM
deaths of hundreds of snow geese at a Northampton County quarry
Above describe suspected H5 deaths of snow geese in Eastern Pennsylvania
www.wgal.com/article/hund...
Above describe suspected H5 deaths of snow geese in Eastern Pennsylvania
www.wgal.com/article/hund...
H5 confirmed
North Perth
Ontario
Commercial poultry
North Perth
Ontario
Commercial poultry
December 16, 2025 at 12:44 AM
H5 confirmed
North Perth
Ontario
Commercial poultry
North Perth
Ontario
Commercial poultry