BACKGROUND Rift Valley fever (RVF) is an acute viral anthropozoonosis that causes epizootics and epidemics among livestock population and humans. Multiple emergences and reemergences of the virus have occurred in Mauritania over the last decade. This article describes the outbreak that occurred in 2015 in Mauritania and reports the results of serological and molecular investigations of blood sa...

Background.  The 2014-2015 Ebola epidemic in West Africa had global impact beyond the primarily affected countries of Guinea, Liberia, and Sierra Leone. Other countries, including the United States, encountered numerous patients who arrived from highly affected countries with fever or other signs or symptoms consistent with Ebola virus disease (EVD). Methods.  We describe our experience evaluat...

background: west nile virus (wnv) is a vector-borneagent that is maintained within a bird-mosquito cycle. in humansand equids, infection by this agent is usually asymptomatic, orcharacterized by a mild febrile illness. however, fatal meningoencephalitisor encephalitis may occur. objectives:the aim ofthis study was to evaluate the prevalence of wnvinfection andcorrelation of this organism with h...

In 2012, Texas experienced the largest outbreak of human West Nile encephalitis (WNE) since the introduction of West Nile virus (WNV) in 2002. Despite the large number of WNV infections, data indicated the rate of reported WNE among human cases was no higher than in previous years. To determine whether the increase in WNV human cases could have been caused by viral genetic changes, the complete...

We report about West Nile virus (WNV) infections in a symptomatic traveller returning from Israel and in her asymptomatic travel companion. Knowledge of the current epidemiological situation in Israel from where WNV cases were reported recently enabled a rapid diagnosis. The described cases serve as a reminder for physicians to consider WNV in the diagnosis of patients returning from areas with...

The genomes of warm-blooded vertebrates are characterized by a strong heterogeneity in base composition, with GC-rich and GC-poor isochores. The GC content of sequences, especially in third codon positions, is highly correlated with that of the isochore they are embedded in. In amphibian and fish genomes, GC-rich isochores are nearly absent. Thus, it has been proposed that the GC increase in a ...

Since the introduction of the mosquito-borne West Nile Vims (WNV) into New York City (NYC) in 1999, it has expanded westward across the North American continent in an unprecedented fashion, taking in its wake hundreds of thousands and possibly millions of native and exotic birds. C o ~ d species, particularly the American crow, are particularly susceptible to this virulent smin of virus and hav...

patient with West Nile virus infection. Arch Ophthalmol. 2003;121(2):205-207. 2. Garg S, Jampol LM. Systemic and intraocular manifestations of West Nile virus infection. Surv Ophthalmol. 2005;50(1):3-13. 3. Garg S, Jampol LM, Wilson JF, Batlle IR, Buettner H. Ischemic and hemorrhagic retinal vasculitis associated with West Nile virus infection. Retina. 2006; 26(3):365-367. 4. Chan CK, Limstrom ...