RESUMEN
Reported autochthonous dengue fever transmission in the United States has been limited to 5 south Texas border counties since 1980. We conducted a cross-sectional serosurvey in Brownsville, Texas, and Matamoros, Tamaulipas, Mexico (n = 600), in 2004 to assess dengue seroprevalence. Recent dengue infection was detected in 2% (95% confidence interval [CI] 0.5%-3.5%) and 7.3% (95% CI 4.3%-10.3%) of residents in Brownsville and Matamoros, respectively. Past infection was detected in 40% (95% CI 34%-45%) of Brownsville residents and 78% (95% CI 74%-83%) of Matamoros residents. For recent infection, only weekly family income Asunto(s)
Dengue/epidemiología
, Adolescente
, Adulto
, Aedes
, Anciano
, Anciano de 80 o más Años
, Animales
, Clima
, Estudios Transversales
, Ecosistema
, Humanos
, México/epidemiología
, Persona de Mediana Edad
, Factores de Riesgo
, Estudios Seroepidemiológicos
, Clase Social
, Texas/epidemiología