| [a study on the occurrence of west nile virus in mosquitoes (diptera: culicidae) on the selected areas in poland]. | west nile virus (wnv), the etiologic agent of west nile fever (wnf), an emerging infectious disease that lately has been rapidly extending its range of occurrence from africa to middle east, and to asia and southern europe. in europe, cases of isolating wnv from mosquitoes representing four genera have been reported from romania, portugal, france, southern russia and what is the most important, from poland's neighbouring countries as the czech republic, slovakia and southern ukraine. these data, ... | 2009 | 19856843 |