South Korea - Government confirms two types of highly pathogenic H5N6 bird flu detected in Gochang virus and Yeongam - December 20, 2017

[Shiloh]

Source: http://english.yonhapnews.co.kr/news...003652320.html

(2nd LD) Two types of highly pathogenic bird flu detected in S. Korea: quarantine agency

2017/12/20 15:38

(ATTN: UPDATES with confirmation of highly pathogenic AI in paras 9, 11-12)

SEOUL, Dec. 20 (Yonhap) -- South Korea's quarantine agency said Wednesday at least two strains of highly pathogenic avian influenza have entered the nation via migratory birds this winter.

The Animal and Plant Quarantine Agency (APQA) announced the results of DNA analysis into viruses detected at two duck farms in Gochang and Yeongam, both in Jeolla Province.

The virus discovered in Gochang on Nov. 19 was the H5N6 bird flu, which arose from the reassortment between a highly pathogenic H5N8 that spread in Europe in late 2016 and a low-pathogenic N6 virus, the APQA said.

It was identical to the one found on the southern island of Jeju from Nov. 27-Dec. 2.

The strain discovered in Yeongam on Dec. 10 was also H5N6, but its viral sequence had a slightly different pattern from the one in Gochang, it noted...

[sharon sanders]

Government confirmation...

2017-12-20 10:00:00

◈ The Jeonbuk Gochang virus was found to be a genetic component of Jeju North Korean wild bird isolate, Jeollanam-do, Korea, Jeonbuk, Korea, and Jeonbuk, Yeongam duck farm, Jeonbuk, Yeonam, The viruses of Yeoncheon virus were analyzed to be the same as those of Suncheonman virus. ◈ It was found that the Jeonbuk Gochang virus and Chonnam Yeongam virus were found to be somewhat low in homology. (Between Gochang and Yeongam) 99.61 ~ 100%, (Yeongam and Suncheon Bay) 99.61 ~ 100% ** (between Gochang and Yeongam) 97.31 ~ 99.13%

http://www.mafra.go.kr/list.jsp?&newsid=155450114&section_id=b_sec_1&pageNo=1&year=2017&listcnt=10&board_kind=C&board_skin_id=C3&depth=1&division=B&group_id=3&menu_id=1125&reference=2&parent_code=3&popup_yn=N&tab_yn=N

[Pathfinder]

Highly pathogenic avian influenza, Korea (Rep. of)

Information received on 21/12/2017 from Dr Oh Soon-Min, Director General - Chief Veterinary Officer, Animal Health Policy Bureau, Ministry of Agriculture, Food and Rural Affairs (MAFRA), SEJONG-SI, Korea (Rep. of)

Summary Report type Follow-up report No. 2 Date of start of the event 17/11/2017 Date of confirmation of the event 19/11/2017 Report date 21/12/2017 Date submitted to OIE 21/12/2017 Reason for notification Recurrence of a listed disease Date of previous occurrence 13/10/2017 Manifestation of disease Clinical disease Causal agent Highly pathogenic avian influenza virus Serotype H5N6 Nature of diagnosis Laboratory (advanced) This event pertains to the whole country Related reports Immediate notification (19/11/2017) Follow-up report No. 1 (12/12/2017) Follow-up report No. 2 (21/12/2017)

New outbreaks (1)

Outbreak 1 Yeongam-gun, Sinhak-ri, Sijong-myeon, JEOLLANAM-DO Date of start of the outbreak 19/12/2017 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Farm Affected animals Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 31300 0 31300 0 Affected population Broiler ducks

Summary of outbreaks Total outbreaks: 1 Total animals affected Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 31300 ** 0 31300 0 Outbreak statistics Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost* Birds ** 0.00% ** 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 Unknown or inconclusive Epidemiological comments Epidemiological investigation is ongoing.

Control measures Measures applied Movement control inside the country Surveillance outside containment and/or protection zone Surveillance within containment and/or protection zone Screening Traceability Quarantine Official destruction of animal products Official disposal of carcasses, by-products and waste Stamping out Control of wildlife reservoirs Disinfection 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 Animal and Plant Quarantine Agency (National laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 21/12/2017 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=25483