OIE: Highly pathogenic avian influenza, Russia

Information received on 25/12/2014 from Dr Evgeny Nepoklonov, Deputy Head, Federal Service for Veterinary and Phytosanitary Surveillance, Ministry of Agriculture, Moscow, Russia

Summary

Report type	Immediate notification
Date of start of the event	25/09/2014
Date of pre-confirmation of the event	11/12/2014
Report date	25/12/2014
Date submitted to OIE	25/12/2014
Reason for notification	New strain of a listed disease
Manifestation of disease	Sub-clinical infection
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

New outbreaks

Summary of outbreaks

Total outbreaks: 1

Outbreak Location

RESPUBLIKA SAKHA(YAKUTIYA) ( Belaya Gora, Abyjsky )

Total animals affected

Species	Susceptible	Cases	Deaths	Destroyed	Slaughtered
Eurasian Wigeon:Anatidae (Anas penelope)		1	0	1	0

Outbreak statistics

Species	Apparent morbidity rate	Apparent mortality rate	Apparent case fatality rate	Proportion susceptible animals lost*
Eurasian Wigeon:Anatidae (Anas penelope)	**	**	0.00%	**

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

Epidemiology

Source of the outbreak(s) or origin of infection

Unknown or inconclusive

Epidemiological comments

Highly pathogenic avian influenza (HPAI) H5 was identified in a sample (trachea) from hunted healthy Eurasian Wigeon through monitoring activities organized by Russian Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing (Rospotrebnadzor). Preliminary analysis suggests this H5N8 is similar to the HPAIVs identified in Asian-Pacific region and Europe as some HA and NA genes fragments are consistent with current HPAI H5N8 virus. Further investigation of this HPAI virus including pathogenicity tests in chickens and full genom sequencing will be done in Federal Centre for Animal Health (FGBI ARRIAH), Vladimir in the nearest future. No HPAI H5N8 virus has been detected in poultry in the Russian Federation.

Control measures

Measures applied	Control of wildlife reservoirs Screening No vaccination No treatment of affected animals
Measures to be applied	No other measures

Diagnostic test results

Laboratory name and type

Federal Scientific Centre of Virology and Biotechnology "Vector", Novosibirsk ( National laboratory )

Tests and results

Species	Test	Test date	Result
Eurasian Wigeon	virus isolation	11/12/2014	Positive

Laboratory name and type

Federal Scientific Centre of Virology and Biotechnology "Vector", Novosibirsk ( National laboratory )

Tests and results

Species	Test	Test date	Result
Eurasian Wigeon	polymerase chain reaction (PCR)