Information received on 25 October 2005 from Dr Yukol Limlamthong, Director General, Department of Livestock Development (DLD), Ministry of Agriculture and Cooperatives, Bangkok:
End of previous report period: 20 October 2005 (see Disease Information, 18 [42], 369, dated 21 October 2005).
End of this report period: 25 October 2005.
Date of first confirmation of the event: 23 January 2004.
Nature of diagnosis: clinical, post-mortem and laboratory.
Details of new outbreaks:
| First administrative division (province) | Lower administrative division | Type of epide-miolo-gical unit | Name of the location | Date of start of the outbreak | Spe-cies | Number of animals in the outbreaks | ||||
| susceptible | cases | deaths | destroyed | slaugh-tered | ||||||
| KanchanaBuri | DonJehDee, PhaNomTuan | village | village No. 5 | 24 Oct. 2005 | avi | 49 | 2 | 2 | 47 | 0 |
| KanchanaBuri | PraTan, TahMaKa | village | village No. 4 | 24 Oct. 2005 | avi | 48 | 3 | 3 | 45 | 0 |
| NakhonPathom | TapLuang, Muang | village | village No. 7 | 21 Oct. 2005 | avi | 23,250 | 2,500 | 2,500 | 20,750 | 0 |
| NonthaBuri | KlongKoi, PakKret | village | village No. 9 | 20 Oct. 2005 | avi | 400 | 120 | 120 | 280 | 0 |
| NonthaBuri | PiMolRat, BangBuaThong | village | village No. 3 | 23 Oct. 2005 | avi | 42 | 40 | 40 | 2 | 0 |
Description of affected population in the new outbreaks: the outbreak in NakhonPathom was a quail farm for egg production; the other outbreaks involved native chickens.
Diagnosis:
| Laboratory where diagnosis was made | Diagnostic tests used | Results |
| National Institute of Animal Health and Regional Veterinary Research and Development Centres, DLD |
- agar-gel precipitation test; - haemagglutination test; - pathogen isolation by egg inoculation; - intracerebral pathogenicity index test. |
positive |
Source of new outbreaks: unknown or inconclusive.
Control measures undertaken:
- stamping out;
- quarantine;
- movement control inside the country;
- screening;
- zoning;
- disinfection of infected premises/establishments.
Vaccination prohibited: yes.
Other details/comments:
Thailand has been conducting the current nationwide surveillance since 1 July 2005.
In this third wave to date, there have been 64 confirmed outbreaks in eight provinces, since the second wave of HPAI re-occurrence that occurred from 3 July 2004 to 12 April 2005:
| Affected province | No. of outbreaks |
| Ayudhaya | 1 |
| Chainat | 1 |
| KamphaengPhet | 25 |
| KanchanaBuri | 6 |
| NakhonPathom | 4 |
| NonthaBuri | 2 |
| Saraburi | 5 |
| SuphanBuri | 20 |
The eight affected provinces are in the Central Poultry Zone of Thailand (see details and map in Disease Information, 18 [35], 290-291, dated 2 September 2005).
All cases involved either free-range poultry or poultry raised in farms with traditional husbandry practices with poor sanitation and insufficient biosecurity.
| Affected population | No. of outbreaks |
| native poultry | 47 |
| quail | 6 |
| broilers | 4 |
| fighting cocks | 4 |
| laying ducks | 2 |
| laying hens | 1 |
Final report: no.