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Volume 19, Number 3—March 2013


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. PeirisComments to Author 
Author affiliations: Author affiliations: University of Hong Kong, Hong Kong Special Administrative Region, People’s Republic of China (H.K.K. Perera, C.L. Cheung, H. Nishiura, D.K. Smith, L.L.M. Poon, S.K. Ma, Y. Guan, J.S.M. Peiris); University of Kelaniya, Kelaniya, Sri Lanka (H.K.K. Perera, N.P. Sunil-Chandra); Medical Research Institute, Colombo, Sri Lanka (G. Wickramasinghe); Japan Science and Technology Agency, Kawaguchi, Japan (H. Nishiura); Colombo Municipal Council, Colombo (A.K.C. Perera)

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Table 1

Swine influenza viruses isolated from pigs, Sri Lanka*

Collection years, location No. pigs sampled/no. viruses isolated (source)
Welisara† 40/0
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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