OIE: Highly pathogenic avian influenza, Switzerland

Information received on 10/11/2016 from Mr Hans Wyss, Chief Veterinary Officer, Schwarzenburgstrasse 161, Swiss Federal Veterinary Office, LIEBEFELD BERNE, Switzerland

Summary

Report type	Immediate notification
Date of start of the event	05/11/2016
Date of confirmation of the event	09/11/2016
Report date	10/11/2016
Date submitted to OIE	10/11/2016
Reason for notification	Reoccurrence of a listed disease
Date of previous occurrence	02/2008
Manifestation of disease	Clinical disease
Causal agent	Highly pathogenic avian influenza virus
Serotype	H5N8
Nature of diagnosis	Laboratory (basic), Laboratory (advanced), Necropsy
This event pertains to	a defined zone within the country

New outbreaks

Summary of outbreaks

Total outbreaks: 1

Outbreak Location

THURGAU ( Lake Constance, Kreuzlingen, Kreuzlingen )

Total animals affected

Species	Susceptible	Cases	Deaths	Destroyed	Slaughtered
Tufted Duck:Anatidae (Aythya fuligula)		3	3	0	0

Outbreak statistics

Species	Apparent morbidity rate	Apparent mortality rate	Apparent case fatality rate	Proportion susceptible animals lost*
Tufted Duck:Anatidae (Aythya fuligula)	**	**	100.00%	**

* 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	On Friday 4 November 2016, three tufted ducks (Aythya fuligula) were found dead at Lake Constance.

Control measures

Measures applied	Vaccination prohibited No treatment of affected animals
Measures to be applied	Surveillance within containment and/or protection zone Zoning

Diagnostic test results

Laboratory name and type

Institute of Virology and Immunology (IVI) ( National laboratory )

Tests and results

Species	Test	Test date	Result
Tufted Duck	virus sequencing	09/11/2016	Positive

Laboratory name and type

Institute of Virology and Immunology (IVI) ( National laboratory )

Tests and results

Species

Test

Test date

Result