Report type

Immediate notification

Date of start of the event

30/10/2016

Date of confirmation of the event

09/11/2016

Report date

10/11/2016

Date submitted to OIE

10/11/2016

Reason for notification

New strain of a listed disease in the country

Causal agent

Highly pathogenic avian influenza virus

Serotype

H5N8

Nature of diagnosis

Laboratory (basic), Laboratory (advanced)

This event pertains to

a defined zone within the country

Summary of outbreaks

Total outbreaks: 1

Outbreak Location

• VUKOVARSKO-SRIJEMSKA ( River Bidj, Cerje, ?upanja )

Total animals affected

Outbreak statistics

* Removed from the susceptible population through death, destruction and/or slaughter;
** Not calculated because of missing information;

Source of the outbreak(s) or origin of infection

• Unknown or inconclusive

Epidemiological comments

Approximately ten swans died on the river Bidj but only two of them were available for laboratory testing. Organ samples were taken and submitted on 31 October to the Poultry centre of the Croatian Veterinary Institute. Avian influenza - subtype H5N8 was isolated. Nucleotide sequencing at the cleavage site of the hemagglutinin (HA) of the isolate revealed the multiple basic amino acid sequence "RERRRKR/GLF", which is consistent with highly pathogenic avian influenza.

Measures applied

• Vaccination prohibited
• No treatment of affected animals

Measures to be applied

• No other measures

Laboratory name and type

Croatian Veterinary Institute- Poultry Centre ( National laboratory )

Tests and results

The event is continuing. Weekly follow-up reports will be submitted.