Volume 19, Number 3—March 2013
Dispatch
Swine Influenza in Sri Lanka
Harsha K. K. Perera, Geethani Wickramasinghe, Chung L. Cheung, Hiroshi Nishiura, David K. Smith, Leo L. M. Poon, Aluthgama K. C. Perera, Siu K. Ma, Narapiti P. Sunil-Chandra, Yi Guan, and Joseph S. M. Peiris
Table 1
Swine influenza viruses isolated from pigs, Sri Lanka*
| Collection years, location | No. pigs sampled/no. viruses isolated (source) |
|---|---|
| 2004–2005 | |
| Welisara† | 40/0 |
| Dematagoda‡ |
260/1 (tracheal swab) |
| 2009–2012, Dematagoda‡ | 2,710/26 (7 tracheal swabs, 19 nasal swabs) |
*From each pig, 1 tracheal swab, 1 nasal swab, and 1 serum sample was collected, except during 2009–2012, when only 1,773 serum samples were collected from the 2,710 pigs beginning in February 2010.
†National Livestock Development Board swine farm, Welisara, Sri Lanka (slaughters 2–3 pigs/ wk).
‡Government slaughterhouse, Colombo Municipal Council, Dematagoda, Colombo, Sri Lanka (slaughters 10–20 pigs/d).
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