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Volume 18, Number 7—July 2012
Dispatch

Influenza Virus Infection in Guinea Pigs Raised as Livestock, Ecuador

Victor H. Leyva-Grado, Samira Mubareka, Florian Krammer, Washington B. Cárdenas, and Peter PaleseComments to Author 
Author affiliations: Mount Sinai School of Medicine, New York, New York, USA (V.H. Leyva-Grado, F. Krammer, P. Palese); Sunnybrook Health Sciences Centre and Research Institute, Toronto, Ontario, Canada (S. Mubareka); and; Escuela Superior Politécnica del Litoral (ESPOL), Guayaquil, Ecuador (W.B. Cárdenas)

Main Article

Table 2

ELISA results for the presence of influenza B virus antibodies in guinea pigs from different regions of 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)
Total 27 28 28

*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.

Main Article

Page created: June 12, 2012
Page updated: June 18, 2012
Page reviewed: June 18, 2012
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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