Volume 18, Number 7—July 2012
Influenza Virus Infection in Guinea Pigs Raised as Livestock, Ecuador
|Region||No. (%) positive, by antigen†
|Whole virus (Yamagata88)||Recombinant hemagglutinin||Recombinant nucleoprotein|
|Cuenca, n = 20||17 (85)||18 (90)||18 (94)‡|
|Guayaquil, n = 10||8 (80)||9 (90)||9 (90)|
|Manabí, n =10||2 (20)||1 (1)||1 (10)|
*Samples were from adult guinea pigs raised as livestock on local farms (Cuenca) or from live animal markets (Guayaquil and Manabí). Whole virus, B/Yamagata/16/1988. Recombinant hemagglutinin was derived from B/Florida/04/2006; nucleoprotein was derived from B/Yamagata/16/1988.
†Serum samples were considered positive if absorbance (read at 405 nm) was higher than the value of the negative control (naive guinea pig serum) + 3 SD.
‡Only 19 samples were tested.
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