| emergence of usutu virus in hungary. | in 2001, usutu virus (usuv), a mosquito-borne flavivirus of the japanese encephalitis virus serogroup related to west nile virus and previously restricted to sub-saharan africa, emerged in wild and zoo birds in and around vienna, austria. in order to monitor the spread of the infection, a dead bird surveillance program was established in austria and in neighboring hungary. in hungary, 332 dead birds belonging to 52 species were tested for usuv infection between 2003 and 2006. in the first 2 year ... | 2007 | 17913929 |