| six-year surveillance of newcastle disease virus in wild birds in north-eastern spain (catalonia). | given that newcastle disease (nd) is one of the major threats for the poultry industry, testing of newcastle disease virus (ndv) has been carried out since 2010 in cases of mortality in wild birds (passive surveillance) in catalonia. the objective is to provide an early warning system to prevent the infection of poultry. since 2010, 35 episodes of mortality in wild birds were attributed to ndv infection. throughout this period there was a progressive expansion of ndv to new areas, with an increa ... | 2017 | 27754702 |