Published Date: 2007-04-22 23:50:00
Subject: PRO/MBDS> Porcine reproductive & respiratory syndrome - Viet Nam (03): OIE
Archive Number: 20070422.1310
PORCINE REPRODUCTIVE & RESPIRATORY SYNDROME - VIET NAM (03): OIE
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Date: Sun, 22 Apr 2007 10:06:02 +0700
From: "Dung Do" <dung.dah@gmail.com>
Re: PORCINE REPRODUCTIVE & RESPIRATORY SYNDROME - VIET NAM (02):
REQUEST FOR INFORMATION
Reference is made to the PRO/MBDS posting .
This is to inform you that the PRRS Follow-up Report No. 1 was
prepared on [19 Apr 2007], submitted to OIE through WAHID [World
Animal Health Information Database] on [20 Apr 2007].
---
Do Huu Dung, DVM, MPhil.,
Epidemiologist,
Department of Animal Health,
15/78 Giai Phong Road,
Phuong Mai, Dong Da, Hanoi
Viet Nam
<dung.dah@gmail.com>
--
PRO/MBDS
<promed-mbds@promedmail.org>
[PRO/MBDS would like to thank Dr. Huu Dung for alerting us to the OIE
report on the PRRS outbreak in Viet Nam. The report is available at
<http://www.oie.int/wahid-prod/public.php?page=single_report&pop=1&reportid=5248>
and is reproduced below. According to the report there are 7
outbreaks of PRRS, involving 5 provinces. Earlier newswires had
mentioned affected animals in Hanoi, but later stated that these
animals were imported from other areas. The below OIE report does
not mention any involvement in animals in Hanoi, suggesting that
either the newswires were erroneous or cases imported to other
provinces are being reported as occurring in their province of origin.
OIE follow-up report 1
Information received on [19 Apr 2007] from Mr Bui Quang Anh, Chief
Veterinary Officer, Department of Animal Health, Ministry of
Agriculture and Rural Development, Hanoi, Vietnam
Summary
Report type: Follow-up report No. 1
Start date : 12 Mar 2007
Date of confirmation of event: 26 Mar 2007
Report date: 19 Apr 2007
Date submitted to OIE: 20 Apr 2007
Reason for notification: 1st occurrence of a listed disease
Manifestation of disease: Clinical disease
Causal agent: PRRSV
Nature of diagnosis : Clinical, Laboratory (basic), Laboratory
(advanced), Necropsy
Report pertains to : Entire country
Related reports
* Immediate notification (10 Apr 2007)
* Follow-up report No. 1 (19 Apr 2007)
New Outbreaks
---------------
Outbreak 1 Quyet Thang, Phu Yen, Son La Province
Date of start of outbreak: 27 Mar 2007
Outbreak status: Resolved (9 Apr 2007)
Epidemiological unit: Farm
Affected animals:
Species swine
Susceptible 250
Cases 129
Deaths 83
Destroyed 0
Slaughtered 0
Outbreak 2 Dinh Du, Van Lam, Hung Yen Province
Date of start of outbreak: 23 Mar 2007
Outbreak status: Continuing (or date resolved not submitted)
Epidemiological unit: Farm
Affected animals
Species Swine
Susceptible 310
Cases 123
Deaths 56
Destroyed 30
Slaughtered 0
Outbreak 3 Xuan Duc, My Hao, Hung Yen Province
Date of start of outbreak 23 Mar 2007
Outbreak status: Continuing (or date resolved not submitted)
Epidemiological unit: Village
Affected animals
Species Swine
Susceptible 450
Cases 210
Deaths 91
Destroyed 45
Slaughtered 0
Outbreak 4 Tram Lo, Thuan Thanh, Bac Ninh Province
Date of start of outbreak: 2 Apr 2007
Outbreak status: Continuing (or date resolved not submitted)
Epidemiological unit: Village
Affected animals
Species Swine
Susceptible 347
Cases 95
Deaths 31
Destroyed 52
Slaughtered 0
Outbreak 5 Yen My, Lang Giang, Bac Giang Province
Date of start of outbreak: 19 Apr 2007
Outbreak status: Continuing (or date resolved not submitted)
Epidemiological unit: Village
Affected animals
Species Swine
Susceptible 612
Cases 218
Deaths 98
Destroyed 32
Slaughtered 0
Outbreak 6 Quynh Hoi, Quynh Phu, Thai Binh Province
Date of start of outbreak 14 Mar 2007
Outbreak status: Continuing (or date resolved not submitted)
Epidemiological unit: Farm
Affected animals
Species Swine
Susceptible 363
Cases 320
Deaths 198
Destroyed 0
Slaughtered 0
Outbreak 7 Lieu Xa, Yen My, Hung Yen Province
Date of start of outbreak: 23 Mar 2007
Outbreak status: Continuing (or date resolved not submitted)
Epidemiological unit: Farm
Affected animals
Species Swine
Susceptible 120
Cases 45
Deaths 23
Destroyed 25
Slaughtered 0
Summary of outbreaks
Total outbreaks: 7
Total animals affected
Species Swine
Susceptible 2452
Cases 1140
Deaths 580
Destroyed 184
Slaughtered 0
Outbreak statistics
Species Swine
Apparent morbidity rate: 46.49 percent
Apparent mortality rate: 23.65 percent
Apparent case fatality rate: 50.88 percent
Proportion susceptible removed*: 31.16 percent
* Removed from the susceptible population either through death,
destruction or slaughter
Epidemiology
Source of infection
- Introduction of new live animals
- Legal movement of animals
Control measures
Measures already applied
- Movement control inside the country
- Disinfection of infected premises/establishment(s)
- Quarantine
- Modified stamping out
- Vaccination permitted
- No treatment of affected animals
Measures to be applied
- Vaccination in response to the outbreak (s)
Diagnostic test results
Laboratory name and type National Centre for Veterinary Diagnosis
(National laboratory)
Tests and results
Species Swine
Test: polymerase chain reaction (PCR)
Test date: 26 Mar 2007
Result: Positive
A good map with affected areas highlighted can be found at the above
given URL link for the WAHID report. - Mod.MPP]
[see also:
Porcine reproductive & respiratory syndrome - Viet Nam (02): RFI 20070418.1283
Porcine reproductive & respiratory syndrome - Viet Nam: RFI 20070410.1208]
[For background information on porcine reproductive & respiratory
syndrome (PRRS) see the below postings available at the general
ProMED-mail website: <http://www.promedmail.org> - Mod.MPP]
See Also
Porcine reproductive & respiratory syndrome - Viet Nam: OIE 20070414.1245Porcine reproductive & respiratory syndrome - Viet Nam: RFI 20070412.1225
Porcine reproductive & respiratory syndrome - USA (NC) 20070407.1171
2004
----
Porcine reproductive & respiratory syndrome - South Africa: 20040621.1658
Porcine reproductive & resp. syndr. - S. Africa (02): 20040819.2295
1999
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PRRS virus, pigs - Ireland: 19990219.0217
...............................mpp
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