Volume 14, Number 4—April 2008
Letter
West Nile Virus in Birds, Argentina
Luis Adrián Diaz*
, Nicholas Komar†, Andres Visintin*, María Julia Dantur Juri‡, Marina Stein§, Rebeca Lobo Allende‡, Lorena Spinsanti*, Brenda Konigheim*, Javier Aguilar*, Magdalena Laurito*, Walter Almirón*, and Marta Contigiani*
, Nicholas Komar†, Andres Visintin*, María Julia Dantur Juri‡, Marina Stein§, Rebeca Lobo Allende‡, Lorena Spinsanti*, Brenda Konigheim*, Javier Aguilar*, Magdalena Laurito*, Walter Almirón*, and Marta Contigiani*
Table
Prevalence of West Nile virus–neutralizing antibodies among birds grouped by taxonomic family, sampled in Chaco, Córdoba, and Tucumán Provinces, Argentina, 2004–2006*
| Bird family | No. positive | No. tested | % Positive (95% CI) | Range of PRNT80 titer† |
|---|---|---|---|---|
| Cardinalidae | 2 | 54 | 3.7 (1.0–12.5) | 80–160 |
| Columbidae | 4 | 270 | 1.5 (0.6–3.8) | 80–1,280 |
| Dendrocolaptidae | 4 | 17 | 23.5 (9.6–47.3) | 320–2,560 |
| Falconidae | 3 | 5 | 60.0 (23.1–88.2) | 320–2,560 |
| Furnariidae | 12 | 201 | 6.0 (3.4–10.1) | 80–1,280 |
| Icteridae | 3 | 137 | 2.2 (0.7–6.2) | 40–320 |
| Passeridae | 1 | 87 | 1.1 (0.2–6.2) | 40 |
| Phasianidae | 2 | 8 | 25.0 (7.1–59.1) | 320 |
| Polioptilidae | 2 | 7 | 28.6 (8.2–64.1) | 80–640 |
| Troglodytidae | 1 | 17 | 5.9 (1.0–27.0) | 80 |
| Turdidae | 8 | 132 | 6.1 (3.1–11.5) | 40–1,280 |
| Tyrannidae | 1 | 370 | 0.3 (0.05–1.5) | 160 |
*Most of these families are of the order Passeriformes except for Falconidae (Falconiformes), Phasianidae (Galliformes), and Columbidae (Columbiformes). CI, confidence internal, determined by the Wilson score method for binomial proportions, without continuity correction.
†PRNT, plaque-reduction neutralization test. Titers are expressed as inverse of dilution.
Page created: July 14, 2010
Page updated: July 14, 2010
Page reviewed: July 14, 2010
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.