Infectious Diseases 2018

Infectious Diseases 2018

H5N8 in Bulgaria

9 July, 2018

Bulgaria had not reported any H5N8 cases in poultry since early March until an outbreak on a commercial duck farm in the Drobrich region on the 25 May following an increase in mortality. This premises also had H5N8 HPAI outbreak earlier in October 2017. The same or very similar virus appears to have been maintained at low level in this area raising the issue of the effectiveness of secondary cleansing and disinfection and/or the need for continual biosecurity preventing incursion from wild birds. Another outbreak of H5N8 has also been recently reported in July in Bulgaria in the same region at a commercial premises.