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CDC EID journal Volume 12 Number 6—June 2006 Main Article

Volume 12, Number 6—June 2006

Dispatch

West Nile Virus Infection in Humans and Horses, Cuba

Maritza Pupo*Comments to Author , Maria Guadalupe Guzmán*, Roberto Fernández*, Alina Llop*, Félix Orlando Dickinson*, Daniel Pérez*, Raúl Cruz†, Tayri González†, Gonzalo Estévez†, Hiram González‡, Paulino Santos§, Gustavo Kourí*, Maya Andonova¶, Robbin Lindsay¶, Harvey Artsob¶, and Michael Drebot¶
Author affiliations: *Tropical Medicine Institute "Pedro Kouri," Havana, Cuba; †Ministry of Public Health, Havana, Cuba; ‡Instituto de Ecología y Sistemática, Havana, Cuba; §Instituto de Medicina Veterinaria, Havana, Cuba; ¶National Microbiology Laboratory, Winnipeg, Manitoba, Canada

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Table 1

Summary of horse sera tested for evidence of WNV infection by ELISA and PRNT*

Sample no. % inhibition (ELISA)
 90% PRNT titer
Anti-WNV Antiflavivirus WNV SLEV Interpretation
C-7 65.3 65.2 160 20 WNV
C-13 58.9 60.4 320 – WNV
C-19 63.2 63.3 320 – WNV
C-20 74.6 62.2 640 – WNV
C-2 44.4 60.4 – 20 SLEV
C-4 11.6 40.1 – 20 SLEV
C-5 67.5 67.6 – 20 SLEV
C-11 10.5 26.7 – 40 SLEV
C-12 32.2 68.0 – 20 SLEV
C-15 27.4 68.9 – 40 SLEV
C-16 64.6 65.7 – 40 SLEV
C-18 59.1 68.2 – 40 SLEV
C-10 62.7 66.3 80 40 Unidentified flavivirus
C-1 22.3 74.4 – – Unidentified flavivirus
C-3 40.5 54.1 – – Unidentified flavivirus
C-6 28.5 74.8 – – Unidentified flavivirus
C-9 40.9 73.6 – – Unidentified flavivirus
C-14 34.8 41.0 – – Unidentified flavivirus
C-21 9.9 68.4 – – Unidentified flavivirus

*WNV, West Nile virus; ELISA, enzyme-linked immunosorbent assay; PRNT, plaque reduction neutralization test; SLEV, Saint Louis encephalitis virus.

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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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