Vietnam reports outbreak of H5N1 bird flu in north - OIE

[tetano]

PARIS, July 12 (Reuters) - Vietnam has reported an outbreak of highly pathogenic H5N1 bird flu among backyard birds in the northern province of Ha Nam, the Paris-based World Organisation for Animal Health (OIE) said on Wednesday, citing a report from the Vietnamese farm ministry.
The virus was detected at a backyard location with 1,135 birds. It directly killed 300 birds, with the rest of the flock slaughtered, the report said.
The types of birds were not indicated and source of the disease not known.
Vietnam is one of a number of countries in Asia, Europe and Africa to have seen bird flu viruses spread in recent months. Many strains only infect birds, but the H7N9 strain has notably led to human cases, including fatalities, in China.

http://af.reuters.com/article/commoditiesNews/idAFL8N1K34P1

[Pathfinder]

Highly pathogenic avian influenza, Vietnam

Information received on 12/07/2017 from Dr Dong Pham Van, Director General, Chief Veterinary Officer, Department of Animal Health, Ministry of Agriculture and Rural Development, Hanoď, Vietnam

Summary Report type Immediate notification Date of start of the event 04/07/2017 Date of confirmation of the event 06/07/2017 Report date 11/07/2017 Date submitted to OIE 12/07/2017 Reason for notification Recurrence of a listed disease Date of previous occurrence 26/05/2017 Manifestation of disease Clinical disease Causal agent Highly pathogenic avian influenza virus Serotype H5N1 Nature of diagnosis Clinical, Laboratory (advanced) This event pertains to the whole country

New outbreaks (1)

Outbreak 1 Liem Thuan, Liem Thuan, Thanh Liem, HA NAM Date of start of the outbreak 04/07/2017 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Backyard Affected animals Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 1135 500 300 835 0

Summary of outbreaks Total outbreaks: 1 Total animals affected Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 1135 500 300 835 0 Outbreak statistics Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost* Birds 44.05% 26.43% 60.00% 100.00% *Removed from the susceptible population through death, destruction and/or slaughter

Epidemiology Source of the outbreak(s) or origin of infection Unknown or inconclusive

Control measures Measures applied Movement control inside the country Vaccination in response to the outbreak (s) Surveillance outside containment and/or protection zone Stamping out Disinfection 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 Center for Veterinary Diagnosis (National laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 06/07/2017 Positive

Future Reporting The event is continuing. Weekly follow-up reports will be submitted.

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http://www.oie.int/wahis_2/public/wahid.php/Reviewreport/Review?page_refer=MapFullEventReport&reportid=24265