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2022-8-20 2:24:35


OIE: Highly pathogenic influenza A viruses (infection with H5N1) (non-poultry including wild birds), Senegal
submited by kickingbird at Feb, 3, 2021 20:25 PM from OIE

Information received on 01/02/2021 from Dr Mbargou Lo, Directeur des Services v閠閞inaires, Direction des Services v閠閞inaires, Minist鑢e de l´Elevage et des Productions animales, Dakar, Senegal
Summary
Report type
Immediate notification
Date of start of the event
14/01/2021
Date of confirmation of the event
28/01/2021
Report date
01/02/2021
Date submitted to OIE
01/02/2021
Reason for notification
First occurrence of a listed disease
Manifestation of disease
Clinical disease
Causal agent
Highly pathogenic avian influenza virus
Serotype
H5N1
Nature of diagnosis
Laboratory (advanced)
This event pertains to
a defined zone within the country
New outbreaks (1)

Outbreak 1
Djoudj, Saint Louis
Date of start of the outbreak
14/01/2021
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Natural park
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Great White Pelican:Pelecanus onocrotalus(Pelecanidae)
8887
822
822
0
0
Pink-backed pelican:Pelecanus rufescens(Pelecanidae)
35
0
0
0
0
Affected population
The affected population is composed of great white (8,887) and pink-backed (35) pelicans. The most affected animals are young. Djoudj National Bird Park host thousands of Palaearctic and Afrotropical migratory birds. It is a feeding, reproduction and refuge site for many bird colonies. Each year, colonies of great white pelicans come to reproduce at a nesting box located not far from the wharf, along the Djoudj backwater.
Summary of outbreaks
Total outbreaks: 1
Total animals affected
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Great White Pelican:Pelecanus onocrotalus(Pelecanidae)
8887
822
822
0
0
Pink-backed pelican:Pelecanus rufescens(Pelecanidae)
35
0
0
0
0
Outbreak statistics
Species
Apparent morbidity rate
Apparent mortality rate
Apparent case fatality rate
Proportion susceptible animals lost*
Great White Pelican:Pelecanus onocrotalus(Pelecanidae)
9.25%
9.25%
100.00%
9.25%
Pink-backed pelican:Pelecanus rufescens(Pelecanidae)
0.00%
0.00%
-
0.00%
*Removed from the susceptible population through death, destruction and/or slaughter
Epidemiology
Source of the outbreak(s) or origin of infection
Unknown or inconclusive
Epidemiological comments
Following a report of deaths in young white pelicans by the curator from the Djoudj National Bird Park on January 14, 2021, the commander/veterinarian and curator of the Gueumbeul Wildlife Reserve carried out an investigation on site on the 23rd January 2021. Samples were sent and the National Laboratory for Animal Husbandry and Veterinary Research of Dakar confirmed the disease (Highly pathogenic avian influenza H5N1) on January 28, 2021. Out of a total of 8,922 birds, 822 deaths and cases were recorded, representing morbidity and mortality rates of 9.21%. Young animals are more affected (810) than adults (12).

Control measures
Measures applied
Surveillance outside containment and/or protection zone
Surveillance within containment and/or protection zone
Official disposal of carcasses, by-products and waste
Control of wildlife reservoirs
Disinfection
Process to inactivate the pathogenic agent in products or by-products
Vaccination prohibited
No treatment of affected animals
Measures to be applied
No other measures
Diagnostic test results
Laboratory name and type
Species
Test
Test date
Result
National Livestock and Veterinary Research Laboratory in Dakar - Senegalese Agricultural Research Institute (ISRA)? (National laboratory)
Great White Pelican
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
28/01/2021
Positive
National Livestock and Veterinary Research Laboratory in Dakar - Senegalese Agricultural Research Institute (ISRA)? (National laboratory)
Great White Pelican
reverse transcription - polymerase chain reaction (RT-PCR)
28/01/2021
Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
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