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Volume 22, Number 7—July 2016
Research

High Incidence of Chikungunya Virus and Frequency of Viremic Blood Donations during Epidemic, Puerto Rico, USA, 2014

Graham SimmonsComments to Author , Vanessa Brès, Kai Lu, Nathan M. Liss, Donald J. Brambilla, Kyle R. Ryff, Roberta Bruhn, Edwin Velez, Derrek Ocampo, Jeffrey M. Linnen, Gerardo Latoni, Lyle R. Petersen, Phillip Williamson, and Edward L. Murphy
Author affiliations: Blood Systems Research Institute, San Francisco, California, USA (G. Simmons, K. Lu, N.M. Liss, R. Bruhn, M.P. Busch); University of California, San Francisco (G. Simmons, M.P. Busch); Hologic, Inc., San Diego, California, USA (V. Brès, D. Ocampo, J.M. Linnen); RTI International, Rockville, Maryland, USA (D.J. Brambilla); Puerto Rico Department of Health, San Juan, Puerto Rico, USA (K.R. Ryff); Banco de Sangre de Servicios Mutuos, San Juan, Puerto Rico, USA (E. Velez, G. Latoni); Centers for Disease Control and Prevention, Fort Collins, Colorado, USA (L.R. Petersen); Creative Testing Solutions, Tempe, Arizona, USA (P.C. Williamson)

Main Article

Figure 3

Serosurvey for chikungunya virus IgG in blood donations during a chikungunya epidemic, Puerto Rico, USA, 2014. Preepidemic samples collected in June and July 2014 were tested by using an IgG ELISA. A stringent cutoff value of mean + 5 SD (dashed line) was calculated from preepidemic samples. A less stringent cutoff value of mean + 3 SD (dotted line) was also calculated. These cutoff values were then applied to postepidemic samples collected in March 2015.

Figure 3. Serosurvey for chikungunya virus IgG in blood donations during a chikungunya epidemic, Puerto Rico, USA, 2014. Preepidemic samples collected in June and July 2014 were tested by using an IgG ELISA. A stringent cutoff value of mean + 5 SD (dashed line) was calculated from preepidemic samples. A less stringent cutoff value of mean + 3 SD (dotted line) was also calculated. These cutoff values were then applied to postepidemic samples collected in March 2015.

Main Article

Page created: June 14, 2016
Page updated: June 14, 2016
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