OIE: Low pathogenic avian influenza (poultry), Dominican Republic

Information received on 24/10/2017 from Dra Nimia Lissette Gómez Rodríguez, Directora, Dirección de Sanidad Animal Dirección General de Ganadería (DIGEGA), Ministerio de Agricultura, Santo Domingo, Dominican Republic

Summary

Report type	Immediate notification
Date of start of the event	30/09/2017
Date of confirmation of the event	18/10/2017
Report date	24/10/2017
Date submitted to OIE	26/10/2017
Reason for notification	Recurrence of a listed disease
Date of previous occurrence	26/02/2009
Manifestation of disease	Clinical disease
Causal agent	Low pathogenic avian influenza virus
Serotype	H5N2
Nature of diagnosis	Clinical, Laboratory (advanced)
This event pertains to	a defined zone within the country

New outbreaks

Summary of outbreaks

Total outbreaks: 1

Outbreak Location

ESPAILLAT ( Espaillat, Guanabano, Moca )

Total animals affected

Species	Susceptible	Cases	Deaths	Killed and disposed of	Slaughtered
Birds	48877	1953	1953	0	0

Outbreak statistics

Species	Apparent morbidity rate	Apparent mortality rate	Apparent case fatality rate	Proportion susceptible animals lost*
Birds	4.00%	4.00%	100.00%	4.00%

* Removed from the susceptible population through death, destruction and/or slaughter;

Epidemiology

Source of the outbreak(s) or origin of infection

Unknown or inconclusive

Epidemiological comments

Abnormal mortality and drop of production were detected in a farm composed of 8 layer units, in a community of the province of Espaillat. The National reference laboratory (Central veterinary laboratory) confirmed the presence of avian influenza virus. Samples were sent to the National veterinary services laboratory, USA, and H5N2 presence was confirmed. Surveillance and control measures were taken in the focal area (1 km) and surveillance measures, in the perifocal area (3-5 km), including surveys, sampling and epidemiological investigation. Disposal of the eggs kept under quarantine has started. Stamping out of the whole susceptible population will be carried out. Thorough cleaning and disinfection will be carried out following fallowing. Intensive surveillance of the bird farms around the outbreak (3 km) will be maintained for three month.

Control measures

Measures applied	Movement control inside the country Surveillance outside containment and/or protection zone Surveillance within containment and/or protection zone Screening Quarantine Official destruction of animal products Ante and post-mortem inspections Vaccination prohibited No treatment of affected animals
Measures to be applied	Official disposal of carcasses, by-products and waste Stamping out Disinfection Process to inactivate the pathogenic agent in products or by-products

Diagnostic test results

Laboratory name and type

Central veterinary laboratory ( National laboratory )

Tests and results

Species	Test	Test date	Result
Birds	agar-gel immunodiffusion (AGID)	11/10/2017	Positive
Birds