OIE: Highly pathogenic avian influenza, Laos (H5N6)
submited by kickingbird at May, 11, 2014 10:10 AM from OIE
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Summary
| Report type |
Follow-up report No. 1 (Final report) |
| Date of start of the event |
13/03/2014 |
| Date of pre-confirmation of the event |
18/03/2014 |
| Report date |
07/05/2014 |
| Date submitted to OIE |
07/05/2014 |
| Date event resolved |
31/03/2014 |
| Reason for notification |
Reoccurrence of a listed disease |
| Date of previous occurrence |
12/2008 |
| Manifestation of disease |
Clinical disease |
| Causal agent |
Highly pathogenic avian influenza virus |
| Serotype |
H5N6 |
| Nature of diagnosis |
Laboratory (advanced) |
| This event pertains to |
a defined zone within the country |
| Related reports |
Immediate notification (31/03/2014)
Follow-up report No. 1 (07/05/2014)
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| Outbreaks |
There are no new outbreaks in this report | |
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Epidemiology
| Source of the outbreak(s) or origin of infection |
- Introduction of new live animals
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| Epidemiological comments |
Samples from this outbreak have now been tested at the Australian Animal Health Laboratory. Sequencing analysis of original samples (post-mortem tissues) from both chickens and ducks shows that these are H5N6 highly pathogenic avian influenza viruses, with the highly pathogenic HA cleavage site sequence motif, PLRERRRKR*GLF. Phylogenetic analysis of the HA gene sequence indicates that the HA is derived from the Asian H5N1 clade 2.3.4 HA lineage; however, they clustered with 憊ariant? (reassortant) clade 2.3.4 H5 HPAI viruses from China of various NA subtypes. Follow-up sequencing of virus isolates from these samples confirms these findings. Full genome sequencing has been completed. | |
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Control measures
| Measures applied |
- Quarantine
- Movement control inside the country
- Screening
- Disinfection of infected premises/establishment(s)
- Modified stamping out
- Vaccination prohibited
- No treatment of affected animals
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| Measures to be applied |
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Future Reporting
| The event is resolved. No more reports will be submitted. | |
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