OIE: Low pathogenic avian influenza (poultry),(People´s Rep. of), (Follow-up report No. 12)

OIE: Low pathogenic avian influenza (poultry),(People´s Rep. of), (Follow-up report No. 12)
submited by kickingbird at Feb, 13, 2014 12:21 PM from OIE

Information received on 11/02/2014 from Dr Zhang Zhongqiu, Director General , China Animal Disease Control Centre, Veterinary Bureau, Ministry of Agriculture, Beijing, China (People´s Rep. of)

Summary

Report type	Follow-up report No. 12
Date of start of the event	04/04/2013
Date of pre-confirmation of the event	04/04/2013
Report date	11/02/2014
Date submitted to OIE	11/02/2014
Reason for notification	New strain of a listed disease
Manifestation of disease	Sub-clinical infection
Causal agent	Low pathogenic avian influenza virus
Serotype	H7N9
Nature of diagnosis	Laboratory (basic), Laboratory (advanced)
This event pertains to	the whole country
Related reports	Immediate notification (04/04/2013) Follow-up report No. 1 (05/04/2013) Follow-up report No. 2 (10/04/2013) Follow-up report No. 3 (16/04/2013) Follow-up report No. 4 (22/04/2013) Follow-up report No. 5 (24/04/2013) Follow-up report No. 6 (26/04/2013) Follow-up report No. 7 (05/05/2013) Follow-up report No. 8 (09/05/2013) Follow-up report No. 9 (21/05/2013) Follow-up report No. 10 (16/01/2014) Follow-up report No. 11 (26/01/2014) Follow-up report No. 12 (11/02/2014)

New outbreaks (5)

Outbreak 1

Jinhua livestock trade market, Guigang, GUANGXI

Date of start of the outbreak

17/01/2014

Outbreak status

Continuing (or date resolved not provided)

Epidemiological unit

Not applicable

Affected animals

Species	Susceptible	Cases	Deaths	Destroyed	Slaughtered
Birds	142915	4	0	142915	0

Affected population

Totally 261 samples were collected from the live bird market (including 220 chicken samples, 11 duck samples and 30 environment samples) according to the National surveillance plan and no clinical signs were found. 4 chicken samples tested positive.

Outbreak 2

Zhugong Lake agriculture products market, Zhuji, ZHEJIANG

Date of start of the outbreak

22/01/2014

Outbreak status

Continuing (or date resolved not provided)

Epidemiological unit

Not applicable

Affected animals

Species	Susceptible	Cases	Deaths	Destroyed	Slaughtered
Birds	60	1	0	60	0

Affected population

Totally 19 samples were collected from the live bird market (including 11 chicken samples, 4 duck samples and 4 environment samples) according to the National surveillance plan and no clinical signs were found. One environment sample tested positive.

Outbreak 3

Xuzhen live bird market, Xingning , Meizhou, GUANGDONG

Date of start of the outbreak

23/01/2014

Outbreak status

Continuing (or date resolved not provided)

Epidemiological unit

Not applicable

Affected animals

Species	Susceptible	Cases	Deaths	Destroyed	Slaughtered
Birds	106	1	0	106	0

Affected population

Totally 42 chicken samples were collected from the live bird market according to the National surveillance plan and no clinical signs were found. One sample tested positive.

Outbreak 4

Live bird market, Miluo, Yueyang, HUNAN

Date of start of the outbreak

27/01/2014

Outbreak status

Continuing (or date resolved not provided)

Epidemiological unit

Not applicable

Affected animals

Species	Susceptible	Cases	Deaths	Destroyed	Slaughtered
Birds	14273	3	0	14273	0

Affected population

Totally 137 samples were collected from the live bird market (including 50 chicken samples, 30 duck samples and 57 environment samples) according to the National surveillance plan and no clinical signs were found. 2 chicken samples and 1 duck sample tested positive.

Outbreak 5

Heping wholesale market, Xiangzhou, Zhuhai, GUANGDONG

Date of start of the outbreak

28/01/2014

Outbreak status

Continuing (or date resolved not provided)

Epidemiological unit

Not applicable

Affected animals

Species	Susceptible	Cases	Deaths	Destroyed	Slaughtered
Birds	1469	2	0	1469	0

Affected population

Totally 360 samples were collected from the live bird market (including 160 chicken samples, 60 duck samples, 60 goose samples and 20 environment samples). 2 chicken samples tested positive.

Summary of outbreaks

Total outbreaks: 5

Total animals affected

Species	Susceptible	Cases	Deaths	Destroyed	Slaughtered
Birds	158823	11	0	158823	0

Outbreak statistics

Species	Apparent morbidity rate	Apparent mortality rate	Apparent case fatality rate	Proportion susceptible animals lost*
Birds	0.01%	0.00%	0.00%	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	Stamping out Movement control inside the country Zoning Disinfection of infected premises/establishment(s) Dipping / Spraying No vaccination No treatment of affected animals
Measures to be applied	No other measures

Diagnostic test results

Laboratory name and type	Species	Test	Test date	Result
Harbin veterinary research institute, Chinese academy of agricultural sciences (OIE抯 Reference Laboratory)	Birds	virus isolation	22/01/2014	Positive
Harbin veterinary research institute, Chinese academy of agricultural sciences (OIE抯 Reference Laboratory)	Birds	virus isolation	27/01/2014	Positive
Harbin veterinary research institute, Chinese academy of agricultural sciences (OIE抯 Reference Laboratory)	Birds	virus isolation	29/01/2014	Positive
Harbin veterinary research institute, Chinese academy of agricultural sciences (OIE抯 Reference Laboratory)	Birds	virus isolation	01/02/2014	Positive
Harbin veterinary research institute, Chinese academy of agricultural sciences (OIE抯 Reference Laboratory)	Birds	virus isolation	02/02/2014	Positive

Future Reporting

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

See Also:

http://www.oie.int/wahis_2/public/wahid.php/Reviewreport/Review?page_refer=MapFullEventReport&reportid=14746

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