Emerging Infectious Disease ISSN: 1080-6059

West Nile Virus from Blood Donors, Vertebrates, and Mosquitoes, Puerto Rico, 2007

Elizabeth A. Hunsperger

, Kate L. McElroy, Kovi Bessoff, Candimar Colón, Roberto Barrera, and Jorge L. Muñoz-Jordán

Author affiliations: Centers for Disease Control and Prevention, San Juan, Puerto Rico, USA

Figure 1

Summary of surveillance data indicating zoonotic and human transmission of West Nile virus (WNV) in Puerto Rico in 2007. Percentage of anti-WNV immunoglobulin (Ig) M–positive chickens per week from June 4 through December 20. Chickens were bled weekly during the beginning of transmission and monthly starting in September 2007. Sixty chickens were placed in the sentinel surveillance sites as previously described by Barrera et al. (7).

Figure 1. Summary of surveillance data indicating zoonotic and human transmission of West Nile virus (WNV) in Puerto Rico in 2007. Percentage of anti-WNV immunoglobulin (Ig) M–positive chickens per week from June 4 through December 20. Chickens were bled weekly during the beginning of transmission and monthly starting in September 2007. Sixty chickens were placed in the sentinel surveillance sites as previously described by Barrera et al. (7).

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