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Highly pathogenic influenza A viruses (infection with) (non-poultry including wild birds),
Israel
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Information received on 14/10/2020 from Dr Tamir Goshen, Acting Director, Veterinary Services and Animal Health,
Ministry of Agriculture and Rural Development, Beit Dagan, Israel
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Summary
| Report type |
Immediate notification |
| Date of start of the event |
12/10/2020 |
| Date of confirmation of the event |
14/10/2020 |
| Report date |
14/10/2020 |
| Date submitted to OIE |
14/10/2020 |
| Reason for notification |
Recurrence of a listed disease |
| Date of previous occurrence |
03/02/2020 |
| Manifestation of disease |
Clinical disease |
| Causal agent |
Highly pathogenic influenza A virus |
| Serotype |
H5N8 |
| Nature of diagnosis |
Clinical, Laboratory (advanced) |
| This event pertains to |
a defined zone within the country |
| Related reports |
Immediate notification (14/10/2020)
Follow-up report No. 1 (19/10/2020)
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| Outbreak 1 (Jerusalem zoo) |
Jerusalem, Jerusalem, Yerushalayim |
| Date of start of the outbreak |
12/10/2020 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Zoo |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Mallard:Anas platyrhynchos(Anatidae) |
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0 |
0 |
0 |
0 |
| Ferruginous Pochard:Aythya nyroca(Anatidae) |
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0 |
0 |
0 |
0 |
| Mute Swan:Cygnus olor(Anatidae) |
11 |
1 |
1 |
0 |
0 |
| Egyptian Goose:Alopochen aegyptiaca(Anatidae) |
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0 |
0 |
0 |
0 |
| Black Swan:Cygnus atratus(Anatidae) |
26 |
13 |
11 |
1 |
0 |
| Spur-winged Lapwing:Vanellus spinosus(Charadriidae) |
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1 |
0 |
1 |
0 |
| Great Cormorant:Phalacrocorax carbo(Phalacrocoracidae) |
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1 |
1 |
0 |
0 |
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| Affected population |
The birds are from a lake area in the Jerusalem''s zoo. Only black swans have been affected among the other species. At first, Four of the black swans were found dead and two of them showed neurological signs when one of them died and the other was euthanized because of the severity of the signs.
To date - 19-10-20, 13/26 swans were found dead (some more were found, and only 1/11 of the mute swans died.) There is an impression that black swans are more susceptible to the virus than mute swans. |
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| Summary of outbreaks |
Total outbreaks: 1 |
| Total animals affected |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Mallard:Anas platyrhynchos(Anatidae) |
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0 |
0 |
0 |
0 |
| Ferruginous Pochard:Aythya nyroca(Anatidae) |
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0 |
0 |
0 |
0 |
| Mute Swan:Cygnus olor(Anatidae) |
11 |
1 |
1 |
0 |
0 |
| Egyptian Goose:Alopochen aegyptiaca(Anatidae) |
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0 |
0 |
0 |
0 |
| Black Swan:Cygnus atratus(Anatidae) |
26 |
13 |
11 |
1 |
0 |
| Spur-winged Lapwing:Vanellus spinosus(Charadriidae) |
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1 |
0 |
1 |
0 |
| Great Cormorant:Phalacrocorax carbo(Phalacrocoracidae) |
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1 |
1 |
0 |
0 |
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| Outbreak statistics |
| Species |
Apparent morbidity rate |
Apparent mortality rate |
Apparent case fatality rate |
Proportion susceptible animals lost* |
| Mallard:Anas platyrhynchos(Anatidae) |
** |
** |
- |
** |
| Ferruginous Pochard:Aythya nyroca(Anatidae) |
** |
** |
- |
** |
| Mute Swan:Cygnus olor(Anatidae) |
9.09% |
9.09% |
100.00% |
9.09% |
| Egyptian Goose:Alopochen aegyptiaca(Anatidae) |
** |
** |
- |
** |
| Black Swan:Cygnus atratus(Anatidae) |
50.00% |
42.31% |
84.62% |
46.15% |
| Spur-winged Lapwing:Vanellus spinosus(Charadriidae) |
** |
** |
0.00% |
** |
| Great Cormorant:Phalacrocorax carbo(Phalacrocoracidae) |
** |
** |
100.00% |
** |
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| *Removed from the susceptible population through death, destruction and/or slaughter |
| **Not calculated because of missing information |
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Epidemiology
| Source of the outbreak(s) or origin of infection |
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Contact with wild species
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| Epidemiological comments |
October is the migration season from Europe where 500 million birds are passing over Israel. Most likely, the virus has been introduced by migratory birds. |
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Control measures
| Measures applied |
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Movement control inside the country
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Surveillance within containment and/or protection zone
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Quarantine
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Zoning
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Vaccination prohibited
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No treatment of affected animals
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| Measures to be applied |
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Diagnostic test results
| Laboratory name and type |
Species |
Test |
Test date |
Result |
| Kimron Veterinary Institute, Avian Diseases Laboratory (National laboratory) |
Black Swan |
pathogen isolation by egg inoculation |
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Pending |
| Kimron Veterinary Institute, Avian Diseases Laboratory (National laboratory) |
Black Swan |
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) |
14/10/2020 |
Positive |
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Future Reporting
| The event is continuing. Weekly follow-up reports will be submitted. |
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Map of outbreak locations
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