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Dominican Republic - Outbreaks of low pathogenic avian influenza H5N2 in birds in farms
Information received on 26/10/2017 from Dra Nimia Lissette G?mez Rodr?guez, Directora, Direcci?n de Sanidad Animal Direcci?n General de Ganader?a (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 (1)
Outbreak 1
Espaillat, Guanabano, Moca, ESPAILLAT
Date of start of the outbreak
30/09/2017
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
48877
1953
1953
0
0
Affected population
Population kept in a farm composed of eight layer units.
Summary of outbreaks
Total outbreaks: 1
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
Species
Test
Test date
Result
Central veterinary laboratory (National laboratory)
Birds
agar-gel immunodiffusion (AGID)
11/10/2017
Positive
Central veterinary laboratory (National laboratory)
"Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear." -Nelson Mandela
As a control measure, the authorities initiate the stamping out of the entire population of hens susceptible to the virus. In addition, cleaning and disinfection will be carried out thoroughly, after depopulation .
Santo Domingo.- Subject to the recommendations of the World Health Organization (WHO) the Ministry of Health of the Dominican Republic said Sunday that the population can continue consuming chicken meat and chicken eggs. Remember, also, that it is always the duty of citizens to cook food well.
In their reports, the international health authority, a unit of the United Nations (UN), states that "there is no data that indicates that the avian flu virus and other influenza viruses can affect people.
The Ministry of Health statement came after confirming the appearance of an outbreak of avian influenza virus subtype H5N2 in a laying hen farm located in the municipality of Cayetano Germos?n Espaillat province. This virus is classified as low capacity to produce disease in humans.
"The challenge for health authorities and producers is to maintain control of the avian disease with the application of specific prevention measures in people who are directly linked to raising birds," says the Ministry of Health.
The suspected outbreak of influenza was detected on the 9th by the Avian Disease Division of the General Livestock Department of the Ministry of Agriculture and immediately notified to the National Liaison Center of the Dominican Republic, in correct application of the Health Regulations. International (RSI).
The statement from the Ministry of Health states that "the Central Veterinary Laboratory identified the presence of an untyped influenza virus in the samples of birds.
Subsequently, the National Laboratory of Veterinary Services (NVSL) of the United States confirmed that it is the subtype H5N2, which is considered to have a low capacity to produce disease in humans. "
Response from the authorities
Meanwhile, the Directorate General of Epidemiology (DIGEPI) of the Ministry of Health explained that "in the active search for human cases, 15 people with mild respiratory symptoms were identified, which were negative in the laboratory tests conducted by the Dr. Defill? National Laboratory. to influenza virus, ".
However, despite considering the H5N2 influenza virus identified in birds at low risk to humans, a multidisciplinary rapid response team (RRA) composed of professionals from the Ministries of Agriculture and Health is proceeding with the established protocol.
The Directorate General of Livestock, meanwhile, reported that "among the measures applied include intensified surveillance and sanitary control in the focal area (1 km) and surveillance in the perifocal area (3-5 km) which includes the application of surveys, sampling and epidemiological tracing. "
He adds that the process of elimination of the eggs kept under quarantine was also initiated and the sanitary sacrifice of the entire population of hens susceptible to the virus was initiated. In addition, cleaning and disinfection will be carried out thoroughly, after depopulation; and for three (3) months, the poultry farms around the focus (about 3km) will be intensified.
Strategic Communication Department National District, Dominican Republic; October 30, 2017.-
"Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear." -Nelson Mandela
Information received on 13/12/2017 from Dra Nimia Lissette G?mez Rodr?guez, Directora, Direcci?n de Sanidad Animal Direcci?n General de Ganader?a (DIGEGA), Ministerio de Agricultura, Santo Domingo, Dominican Republic
San Juan, Sabana Alta, San Juan de la Maguana, SAN JUAN
Date of start of the outbreak
10/10/2017
Outbreak status
Resolved (07/12/2017)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
46500
12657
12657
33843
0
Affected population
Broiler chicken in three sheds
Outbreak 2
La Vega, R?o Verde Arriba, Arroyo Hondo, La Concepci?n de la Vega, LA VEGA
Date of start of the outbreak
10/10/2017
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
34000
1639
1639
0
0
Affected population
Layer hens in five sheds
Outbreak 3
La Vega, Cutup?, R?o Verde Arriba, LA VEGA
Date of start of the outbreak
30/10/2017
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
27400
1257
1257
0
0
Affected population
Layer hens in four sheds
Summary of outbreaks
Total outbreaks: 3
Total animals affected
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
107900
15553
15553
33843
0
Outbreak statistics
Species
Apparent morbidity rate
Apparent mortality rate
Apparent case fatality rate
Proportion susceptible animals lost*
Birds
14.41%
14.41%
100.00%
45.78%
*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
No new outbreaks have been detected around the index outbreak. The index outbreak is closed. Three new outbreaks have been confirmed positive for avian influenza (H5N2); one of them is resolved. The other outbreaks are under official control until all control measures have been implemented. Surveillance is still on-going in the outbreak area (1 km) and in the area around the outbreaks (3-5 km), including screening and traceability.
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
Official disposal of carcasses, by-products and waste
Stamping out
Ante and post-mortem inspections
Vaccination prohibited
No treatment of affected animals
Measures to be applied
Disinfection
Process to inactivate the pathogenic agent in products or by-products
Diagnostic test results
Laboratory name and type
Species
Test
Test date
Result
Central veterinary laboratory (National laboratory)
Birds
agar-gel immunodiffusion (AGID)
30/11/2017
Positive
National Veterinary Services Laboratory, United States (OIE Reference Laboratory)
Birds
haemagglutination inhibition test (HIT)
07/12/2017
Positive
National Veterinary Services Laboratory, United States (OIE Reference Laboratory)
Birds
real-time PCR
01/12/2017
Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
"Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear." -Nelson Mandela
Information received on 08/02/2018 from Dra Nimia Lissette G?mez Rodr?guez, Directora, Direcci?n de Sanidad Animal Direcci?n General de Ganader?a (DIGEGA), Ministerio de Agricultura, Santo Domingo, Dominican Republic
La Vega, Rio Verde Arriba, Arroyo Hondo, Rio Verde Arriba, LA VEGA
Date of start of the outbreak
10/01/2018
Outbreak status
Resolved (02/02/2018)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
26
6
0
26
0
Affected population
Backyard hens
Summary of outbreaks
Total outbreaks: 4
Total animals affected
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
78926
834 **
828
43141
0
Outbreak statistics
Species
Apparent morbidity rate
Apparent mortality rate
Apparent case fatality rate
Proportion susceptible animals lost*
Birds
**
1.05%
**
55.71%
*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-going outbreaks are under quarantine measures and birds will be killed and disposed of. Surveillance measures are still applied in the focal area (1 km) and in the perifocal area (3-5 km), including screening and epidemiological investigation.
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
Official disposal of carcasses, by-products and waste
Stamping out
Ante and post-mortem inspections
Vaccination prohibited
No treatment of affected animals
Measures to be applied
Disinfection
Process to inactivate the pathogenic agent in products or by-products
Diagnostic test results
Laboratory name and type
Species
Test
Test date
Result
Central veterinary laboratory (National laboratory)
Birds
haemagglutination inhibition test (HIT)
11/01/2018
Positive
Central veterinary laboratory (National laboratory)
Birds
haemagglutination inhibition test (HIT)
12/01/2018
Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
"Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear." -Nelson Mandela
Information received on 29/05/2018 from Dra Nimia Lissette G?mez Rodr?guez, Directora, Direcci?n de Sanidad Animal Direcci?n General de Ganader?a (DIGEGA), Ministerio de Agricultura, Santo Domingo, Dominican Republic
*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
On-going outbreaks are still under quarantine. Surveillance measures are still being applied in the focal (1 km) and perifocal (3-5 km) areas, including screening and epidemiological investigation. The neuraminidase inhibition assay has not been performed.
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
Official disposal of carcasses, by-products and waste
Stamping out
Ante and post-mortem inspections
Vaccination prohibited
No treatment of affected animals
Measures to be applied
Disinfection
Process to inactivate the pathogenic agent in products or by-products
Diagnostic test results
Laboratory name and type
Species
Test
Test date
Result
Central veterinary laboratory (National laboratory)
Birds
agar-gel immunodiffusion (AGID)
13/04/2018
Positive
Central veterinary laboratory (National laboratory)
Birds
haemagglutination inhibition test (HIT)
21/05/2018
Positive
Central veterinary laboratory (National laboratory)
"Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear." -Nelson Mandela
Information received on 01/08/2018 from Dra Nimia Lissette G?mez Rodr?guez, Directora, Direcci?n de Sanidad Animal Direcci?n General de Ganader?a (DIGEGA), Ministerio de Agricultura, Santo Domingo, Dominican Republic
La Vega, R?o Verde Arriba, Cutup?, Rio Verde Arriba, La Vega
Date of start of the outbreak
20/03/2018
Outbreak status
Resolved (27/06/2018)
Epidemiological unit
Farm
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
34500
30
30
34470
0
Affected population
Layer hens distributed between three coops.
Summary of outbreaks
Total outbreaks: 1
Total animals affected
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
34500
30
30
34470
0
Outbreak statistics
Species
Apparent morbidity rate
Apparent mortality rate
Apparent case fatality rate
Proportion susceptible animals lost*
Birds
0.09%
0.09%
100.00%
100.00%
*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
No new outbreaks have been detected since the last one (May 2018). Sentinel birds were placed in some of the farms to confirm the absence of the disease; the other ones have been subjected to fallowing.
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
Official disposal of carcasses, by-products and waste
Stamping out
Disinfection
Process to inactivate the pathogenic agent in products or by-products
Ante and post-mortem inspections
Vaccination prohibited
No treatment of affected animals
Measures to be applied
No other measures
Future Reporting
The event is resolved. No more reports will be submitted.
"Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear." -Nelson Mandela
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