| usutu virus in italy: an emergence or a silent infection? | a two year study (2008-2009) was carried out to monitor the usutu virus (usuv) circulation in italy. sentinel horses and chickens, wild birds and mosquitoes were sampled and tested for the presence of usuv and usuv antibodies within the wnd national surveillance plan. seroconversion evidenced in sentinel animals proved that in these two years the virus has circulated in tuscany, emilia romagna, veneto and friuli venezia giulia regions. in veneto usuv caused a severe blackbird die-off disease inv ... | 2011 | 21550731 |