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New Foundland & Labrador: Avian flu in wild birds 2023 - 2024

Shiloh

Shiloh

Editor, Senior Moderator
Source: https://www.cbc.ca/news/canada/newfoundland-labrador/avian-flu-st-johns-1.6785466

Biologists say avian flu might be infecting St. John's ducks
In wake of Bowring Park bird deaths, more ducks found dead in Quidi Vidi and Virginia Lake
William Ping · CBC News · Posted: Mar 21, 2023 10:27 AM EDT | Last Updated: 7 hours ago

After several recent instances of dead birds found in and around St. John's, biologists are raising concerns that ducks in the city might be carrying the highly pathogenic H5N1 avian flu.

"Some of the ducks we've been sampling are living but infected," said Andrew Lang, a microbiologist who has been studying avian flu for over 15 years.

Lang, one of the scientists looking into the spread of the avian flu in the city in the wake of the deaths of two swans and seven ducks in Bowring Park, said the virus is still circulating in bird populations and caution is necessary. Though the avian flu has been an ongoing concern among Newfoundland and Labrador birds since late 2021, Lang said it briefly seemed like the risk had subsided...
 
Canada - Influenza A viruses of high pathogenicity (Inf. with) (non-poultry including wild birds) (2017-) - Follow up report 1


GENERAL INFORMATION

COUNTRY/TERRITORY OR ZONE
COUNTRY/TERRITORY

ANIMAL TYPE
TERRESTRIAL

DISEASE CATEGORY
Listed disease

EVENT ID
5582

DISEASE
Influenza A viruses of high pathogenicity (Inf. with) (non-poultry including wild birds) (2017-)

CAUSAL AGENT
Highly pathogenic avian influenza virus

GENOTYPE / SEROTYPE / SUBTYPE
H5N1

START DATE
2024/01/01

REASON FOR NOTIFICATION
Recurrence of an eradicated disease

DATE OF LAST OCCURRENCE
2015/02/04

CONFIRMATION DATE
2024/01/15

EVENT STATUS
On-going

END DATE- SELF-DECLARATION

NO REPORT INFORMATION

REPORT NUMBER
Follow-up report 1

REPORT ID
FUR_166675

REPORT REFERENCE- REPORT DATE
2024/04/12

REPORT STATUS
Validated

NO EVOLUTION REPORT

EPIDEMIOLOGY

SOURCE OF EVENT OR ORIGIN OF INFECTION
  • Contact with wild species
EPIDEMIOLOGICAL COMMENTS
This event is the continuation of event #4191 for reporting wild birds with high pathogenicity avian influenza (HPAI) H5N1 virus. Outbreaks are reported by province/territory. The geographical marker is on the capital. Outbreaks of HPAI in domestic non-poultry are reported in Event [NODE="5250"]Banks need to think about.....[/NODE] For detailed and current information on high pathogenicity avian influenza cases in wild birds, please consult : http://www.cwhc-rcsf.ca/avian_influenza.php. Wildlife surveillance as well as the Canadian Avian Influenza Surveillance System (CanNAISS) activities for poultry are ongoing in Canada. According to Article 10.4.1.4. of the Terrestrial Animal Health Code, Member Country should not impose bans on the international trade of poultry commodities in response to notification of infection with any Influenza A viruses in birds other than poultry.

QUANTITATIVE DATA SUMMARY

MEASURING UNIT
Animal

SpeciesSusceptibleCasesDeathsKilled and Disposed ofSlaughtered/ Killed for commercial useVaccinated Cooper's Hawk (WILD)NEW-3----TOTAL-3---- Wood Duck (WILD)NEW-1----TOTAL-1---- Northern Pintail (WILD)NEW-1----TOTAL-1---- American wigeon (WILD)NEW-3----TOTAL-3---- Green-winged Teal (WILD)NEW-3----TOTAL-3---- Northern Shoveler (WILD)NEW-1----TOTAL-1---- Mallard (WILD)NEW-10----TOTAL-10---- American Black Duck (WILD)NEW-1----TOTAL-1---- Snow Goose (WILD)NEW-8----TOTAL-15---- Anserinae (unidentified) (WILD)NEW-1----TOTAL-1---- Ross's Goose (WILD)NEW-1----TOTAL-1---- Great Blue Heron (WILD)NEW-1----TOTAL-1---- Canada Goose (WILD)NEW-63----TOTAL-79---- Cackling Goose (WILD)NEW-8----TOTAL-8---- Snowy Owl (WILD)NEW-1----TOTAL-1---- Great Horned owl (WILD)NEW-4----TOTAL-12---- Red-tailed Hawk (WILD)NEW-9----TOTAL-9---- Dunlin (WILD)NEW-1----TOTAL-1---- American crow (WILD)NEW-15----TOTAL-17---- Common Raven (WILD)NEW-1----TOTAL-1---- Blue jay (WILD)NEW-1----TOTAL-1---- Trumpeter Swan (WILD)NEW-3----TOTAL-4---- Peregrin falcon (WILD)NEW-4----TOTAL-4---- Bald Eagle (WILD)NEW-2----TOTAL-2---- Laridae (unidentified) (WILD)NEW-1----TOTAL-1---- Herring Gull (WILD)NEW-4----TOTAL-4---- Glaucous-winged Gull (WILD)NEW-1----TOTAL-1---- Great black-backed Gull (WILD)NEW-1----TOTAL-1---- Double-crested cormorant (WILD)NEW------TOTAL-1---- Black-billed Magpie (WILD)NEW-3----TOTAL-3---- Barred Owl (WILD)NEW-3----TOTAL-3---- Barn Owl (Common Barn-Owl) (WILD)NEW-1----TOTAL-1---- Hooded Merganser (WILD)NEW-1----TOTAL-1---- American goshawk (WILD)NEW------TOTAL-1---- All speciesNEW-161----TOTAL-197----

DIAGNOSTIC DETAILS

CLINICAL SIGNS
NO

METHOD OF DIAGNOSTIC
Diagnostic test
Gene sequencingNational Centre for Foreign Animal Disease (NCFAD), Winnipeg, ManitobaGreat Horned owl,Snow Goose,Mallard,Ross's Goose,Cackling Goose,Herring Gull,Northern Shoveler,Black-billed Magpie,Red-tailed Hawk,Great Blue Heron,Great black-backed Gull,Glaucous-winged Gull,Dunlin,Bald Eagle,Barn Owl (Common Barn-Owl),Snowy Owl,Peregrin falcon,Laridae (unidentified),Barred Owl,Hooded Merganser,Common Raven,Anserinae (unidentified),Canada Goose,Blue jay,American Black Duck,Wood Duck,Double-crested cormorant,American wigeon,Trumpeter Swan,American goshawk,Northern Pintail,Green-winged Teal,American crow,Cooper's Hawk102024/01/152024/03/28Positive
Real-time reverse transcription polymerase chain reaction (rRT-PCR)National Centre for Foreign Animal Disease (NCFAD), Winnipeg, ManitobaCommon Raven,Dunlin,Peregrin falcon,Anserinae (unidentified),Barn Owl (Common Barn-Owl),Hooded Merganser,Cooper's Hawk,Snow Goose,Wood Duck,Green-winged Teal,Canada Goose,American crow,Northern Pintail,Glaucous-winged Gull,Barred Owl,Red-tailed Hawk,Great Horned owl,American goshawk,Laridae (unidentified),American Black Duck,American wigeon,Cackling Goose,Mallard,Double-crested cormorant,Ross's Goose,Northern Shoveler,Black-billed Magpie,Trumpeter Swan,Herring Gull,Great Blue Heron,Snowy Owl,Great black-backed Gull,Blue jay,Bald Eagle102024/01/152024/03/28Positive

NEW OUTBREAKS

OB_133570 - NL-2024-HPAI-WB-1 - NEWFOUNDLAND AND LABRADOR - WILDBIRDS

OB_133569 - NS-2024-HPAI-WB-1 - NOVA SCOTIA - WILDBIRDS

OB_133568 - SK-2024-HPAI-WB-1 - SASKATCHEWAN - WILDBIRDS

OB_133567 - NB-2024-HPAI-WB-1 - NEW BRUNSWICK - WILDBIRDS

OB_133566 - BC-2024-HPAI-WB-1 - BRITISH COLUMBIA - WILDBIRDS
​


​https://wahis.woah.org/#/in-review/5582
 
Translation Google

The population of gannets, hard hit by avian flu, is getting better

News By Radio-Canada
June 24, 2024

The gannet population at the Cape St. Mary's Ecological Reserve in Newfoundland appears to be improving after the death of thousands of individuals.

As of 2022, avian flu has killed more than 25,000 birds in North America and at least 6,600 in Newfoundland and Labrador, according to biologist Rebecca Wiseman , a researcher at Memorial University .

Reproductive success dropped drastically, from the usual average of 60% to just 17% during this period. A hard blow for their colonies , says Rebecca Wiseman .

Last year, however, the success rate rebounded to 72%. This year, Rebecca Wiseman estimates that 60% to 70% of nests have eggs, which is a good sign.

Her colleague Sydney Collins estimates that 11% of the gannet breeding population died during this avian flu outbreak.

She says she is pleasantly surprised by the jump in the reproduction rate given the warming of the water which has changed the time when many of the fish eggs on which the boobies feed have hatched.

This high rate of reproductive success is quite reassuring for the recovery of the population.
A quote from Sydney Collins , researcher

Researchers, she adds, are trying to test a hypothesis according to which birds that survive bird flu emerge with better abilities to reproduce.

A single glance reveals the devastation caused by bird flu in this reserve famous for its gannets.

We saw a large rock, all gannet white, it looked like snow. But now there are empty spaces where nests used to be found , explains Noah Carreen , who researches seabirds and lives near the ecological reserve.

At this time, there are no signs of circulation of the virus causing avian flu in Cape St. Mary's , says Noah Carreen . However, carcasses of birds that have been found on nearby beaches must be analyzed, he says, to be sure.

BY Radio-Canada with information from CBC

https://www.ilesdelamadeleine.com/2...mieux/?feed_id=3345&_unique_id=6679596df1edc​
 
image.png
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https://wahis.woah.org/#/in-review/5283
 
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