Volume 16, Number 10—October 2010
Research
Influenza A (H5N1) Viruses from Pigs, Indonesia
Table 1
Sites and prevalence of influenza A (H5N1) viruses isolated from pigs, Indonesia*
Surveillance period and location | No. samples/no. pigs† | Viruses isolated, no. (rate) | Management type | Distance from poultry |
---|---|---|---|---|
2005 Jan–2005 Feb | ||||
Banten, Tangerang | ||||
Farm A | 41/500 | 12 (29) | Commercial | On site |
Farm B | 22/500 | 6 (27) | Commercial | On site |
Farm C | 13/50 | 0 | Private | On site |
Farm D | 18/250 | 11 (61) | Commercial | On site |
Farm E | 13/50 | 0 | Private | On site |
Farm F | 29/250 | 4 (14) | Commercial | On site |
Farm G | 23/100 | 2 (9) | Private | On site |
East Java, Surabaya, SH | 8/100 | 0 | Private | 2 km |
Total |
167/1,800 |
35 (21) |
NA |
NA |
2006 Oct–2007 Feb | ||||
Banten, Tangerang | ||||
Farm H | 34/150 | 4 (12) | Commercial | On site |
Farm I | 15/50 | 1 (7) | Private | On site |
East Java | ||||
Surabaya, SH | 95/600–700 | 8 (8) | Government | 1 km |
Kediri, farm | 30/150 | 1 (3) | Private | 1 km |
North Sumatra, Medan, farm | 38/400 | 2 (5) | Commercial | 0.5 km |
South Kalimantan, Banjarmasin, SH | 23/50 | 1 (4) | Private | On site |
Total |
235/1,400–1,500 |
17 (7) |
NA |
NA |
2008 Nov–2009 Apr | ||||
East Java | ||||
Tulungagung | ||||
Farm A | 25/900 | 0 | Commercial | 1 km |
Farm B | 29/700 | 0 | Commercial | 2 km |
Surabaya, SH | 40/600–700 | 0 | Government | 1 km |
Jember, farm | 18/400 | 0 | Private | 2 km |
Malang, farm | 39/500 | 0‡ | Private | 1 km |
Central Java, Solo, farm | 15/100 | 0 | Private | 5 km |
Bali | ||||
Denpasar, SH | 99/400 | 0 | Government | 2 km |
Tabanan, farm | 9/300 | 0 | Commercial | 0.2 km |
Riau Islands, Bulan, farm | 26/20,000 | 0 | Commercial | No poultry farms on island |
Total | 300/23,900–24,000 | 0 | NA | NA |
Total | 702/27,100–27,300 | 52 (7.4) | NA | NA |
*SH, slaughterhouse; NA, not applicable.
†Numbers of pigs on farms are estimates.
‡Three samples were positive for A/swine/East Java/UT6040/2007 (H5N1); neutralizing titers were 4 for 1 sample and 16 for 2 samples.