OIE: Highly pathogenic influenza A viruses (infection with) (non-poultry including wild birds), Japan
submited by kickingbird at Apr, 28, 2018 13:2 PM from OIE
| Information received on 27/04/2018 from Dr Kazuo Ito, Director, International Animal Health Affairs Office, Animal Health Division, Food Safety and Consumer Affairs Bureau, Ministry of Agriculture, Forestry and Fisheries, Tokyo, Japan | |
|
Summary
|
|
|
| Outbreak 1 |
Itami city, Hyogo |
| Date of start of the outbreak |
18/03/2018 |
| Outbreak status |
Resolved (18/03/2018) |
| Epidemiological unit |
Not applicable |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Large-billed Crow:Corvus macrorhynchos(Corvidae) |
|
1 |
1 |
0 |
0 | | |
| Outbreak 2 |
Itami city, Hyogo |
| Date of start of the outbreak |
25/03/2018 |
| Outbreak status |
Resolved (25/03/2018) |
| Epidemiological unit |
Not applicable |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Large-billed Crow:Corvus macrorhynchos(Corvidae) |
|
1 |
1 |
0 |
0 | | |
| Summary of outbreaks |
Total outbreaks: 2 |
| Total animals affected |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Large-billed Crow:Corvus macrorhynchos(Corvidae) |
|
2 |
2 |
0 |
0 | |
| Outbreak statistics |
| Species |
Apparent morbidity rate |
Apparent mortality rate |
Apparent case fatality rate |
Proportion susceptible animals lost* |
| Large-billed Crow:Corvus macrorhynchos(Corvidae) |
** |
** |
100.00% |
** | |
| *Removed from the susceptible population through death, destruction and/or slaughter |
| **Not calculated because of missing information | |
|
Epidemiology
| Source of the outbreak(s) or origin of infection |
|
| Epidemiological comments |
Large-billed crows (Corvus macrorhynchos) were found dead in Itami city and tested positive for influenza A virus with rapid tests. Then confirmatory tests were carried out in Tottori University and H5N6 highly pathogenic avian influenza virus was detected in 2 samples. | |
|
|
Control measures
| Measures applied |
- Screening
- Disinfection
- Vaccination prohibited
- No treatment of affected animals
|
| Measures to be applied |
| |
|
Diagnostic test results
| Laboratory name and type |
Species |
Test |
Test date |
Result |
| Tottori University (Private Laboratory) |
Large-billed Crow |
gene sequencing |
30/03/2018 |
Positive |
| Tottori University (Private Laboratory) |
Large-billed Crow |
gene sequencing |
04/04/2018 |
Positive |
| Tottori University (Private Laboratory) |
Large-billed Crow |
haemagglutination (HA) test |
30/03/2018 |
Positive |
| Tottori University (Private Laboratory) |
Large-billed Crow |
haemagglutination (HA) test |
04/04/2018 |
Positive |
| Tottori University (Private Laboratory) |
Large-billed Crow |
haemagglutination inhibition test (HIT) |
30/03/2018 |
Positive |
| Tottori University (Private Laboratory) |
Large-billed Crow |
haemagglutination inhibition test (HIT) |
04/04/2018 |
Positive |
| Tottori University (Private Laboratory) |
Large-billed Crow |
reverse transcription - polymerase chain reaction (RT-PCR) |
30/03/2018 |
Positive |
| Tottori University (Private Laboratory) |
Large-billed Crow |
reverse transcription - polymerase chain reaction (RT-PCR) |
04/04/2018 |
Positive |
| Tottori University (Private Laboratory) |
Large-billed Crow |
virus isolation |
30/03/2018 |
Positive |
| Tottori University (Private Laboratory) |
Large-billed Crow |
virus isolation |
04/04/2018 |
Positive | |
|
Future Reporting
| The event is continuing. Weekly follow-up reports will be submitted. | |
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