| first isolation of west nile virus in the caribbean. | a sentinel chicken program for west nile virus (wnv) surveillance was initiated in july 2006 in eastern puerto rico, yielding the first seroconversions on june 4, 2007. wnv was isolated from sentinel chicken serum and mosquito pools (culex nigripalpus, culex bahamensis) for the first time in tropical america. preliminary sequence analysis of the prm and e genes revealed a 1-amino acid difference (v159a) between the puerto rican 2007 and the ny99. this mutation has been observed in the current do ... | 2008 | 18385366 |
| seasonal and habitat effects on dengue and west nile virus vectors in san juan, puerto rico. | the presence of west nile (wnv) and dengue viruses and the lack of recent mosquito surveys in puerto rico prompted an investigation on the distribution and abundance of potential arbovirus vectors in the san juan metropolitan area, and their variation with seasons and habitats. we sampled mosquitoes in early and late 2005 in 58 sites from forests, nonforest vegetation, wetlands, and high- and low-density housing areas using ovijars, centers for disease control and prevention miniature light/co2 ... | 2009 | 19432067 |
| mosquito vectors of west nile virus during an epizootic outbreak in puerto rico. | the purpose of this investigation was to identify the mosquito (diptera: culicidae) vectors of west nile virus (wnv; family flaviviridae, genus flavivirus) during an epizootic wnv outbreak in eastern puerto rico in 2007. in june 2006, 12 sentinel chicken pens with five chickens per pen were deployed in six types of habitats: herbaceous wetlands, mangrove forests, deciduous forests, evergreen forests, rural areas, and urban areas. once wnv seroconversion in chickens was detected in june 2007, we ... | 2010 | 21175071 |