figure 1. maps of israel with location of ein shemer · 1 dear mr. aart brouw 2 february 2010...
TRANSCRIPT
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Dear Mr. Aart Brouw 2 February 2010
Subject: A case of influenza H5N1 in a broiler breeder pullet flock in Ein Shemer
Following is a description of the case and the measures we have taken up to this point:
Avian Influenza H5N1 was detected in a 115 days old broiler breeder pullet flock in Ein Shemer (see
location in Figure 1) which is in Haifa province in Hadera district.
Figure 1. Maps of Israel with location of Ein Shemer
Description of the farm:
The flock was housed in a high biosecurity farm. The farm is enclosed by a fence and the only access
is via a sanitary facility (shower and changing all clothes in and out). The distances from the sanitary
facility to the entrances of the poultry houses are between 50 and 100 meters. The farm consists of
three adjacent environmentally and light controlled poultry houses (Figure 2). Each poultry house is
divided into four rooms. The disease was discovered only in the middle house and no disease was
diagnosed in the two adjacent poultry houses until the time of culling.
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Figure 2. Poultry farm where outbreak occurred.
The site of the farm is located outside the kibbutz and isolated (figure 3 and 4).
Figure 4 – Location of the farm south
of Kibbutz Ein Shemer
Figure 3- Aerial view of the poultry
house were the outbreak occurred
The location of the outbreak is 8.3 kilometers away from the last H5N1outbreak in Binyamina in 2008
(Figure 5). The outbreak in Binyamina occurred also in January.
Poultry houses
Sanitary facility
Gate
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Figure 5 – Aerial line between the two last outbreaks of H5N1 in Israel
Quarantine and surveillance
A protection zone of 3 km and a surveillance zone of 10 km have been applied (Figure 6) according to
the Israeli procedures based on Council Directive 2005/94/EC of 20 December 2005 on Community
measures for the control of avian influenza and repealing Directive 92/40/EEC.
Binyamina
Ein Shemer
8.3 Km
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Figure 6 protection and surveillance zones
List of the villages with commercial or pet birds in the protection and surveillance zones:
Protection zone:
Barkay
Ein Iron
Ein Shemer
Gan Hashomron
Kefar Pines
Maanit
Metzer
Pardes Hanna – Karkur
Shaar Menashe
Surveillance zone:
Ahitov
Amatz
Aviel
Baka El Garbbya
10 km surveillance zone
3 km protection zone
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Binyamina
Ein Ahoresh
Gan Shmuel
Givat Haim Ihud
Givat Haim Meuhad
Hadera
Hamaapil
Harish
Katsir
Kfar Glikson
Lehavot Haviva
Magal
Maor
Mishmarot
Or Akiva
Regavim
Talmei Elazar
Diagnosis:
On the 17th of January due to a slight increase of mortality in the middle poultry house, tracheal and
cloacal swabs were submitted to the northern poultry health laboratory and tested by PCR and viral
isolation and were negative (these sample have been retested and were found negative).
On the 24th of January there was a high increase in mortality and further birds, tracheal and cloacal
samples were submitted to the northern laboratory and the Avian and fish division in the Kimron
Veterinary Institute. Samples from the chickens were positive to H5N1 virus by real time-PCR and
viral isolation. IVPI is pending.
Culling and disinfection
On January 27th, the birds in the diseased house were culled by foam. The remaining two houses
were culled by the morning of January 28th. Cleaning and disinfection was finished on February 2nd. It
was decided not to cull any other farms as the diseased farm and poultry house were high biosecurity
facilities as are all the farms within two kilometers.
Immediate surveillance
105 farms in 30 villages are located in the 10 kilometers radius. Nine farms in the protection zone (0-3
kilometers) and 24 farms in the surveillance zone (3-10 kilometers) were empty.
In the protection zone there are three hatcheries.
Immediate surveillance was carried out on all poultry farms and backyard flocks in this radius as
detailed in the following table:
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Poultry type Protection zone Surveillance zone
Meat turkeys 1 12
Breeding turkeys 0 3
Broiler chickens 4 3
Table egg pullets 6 2
Table egg layers 7 3
Broiler breeder pullets 5 2
Broiler breeders 7 5
Egg breeder pullets 1 0
Backyard flocks 6 1
Total - 68 37 31
Tracheal and cloacal swabs from all these flocks were tested in the Northern Poultry Diseases Laboratory
by PCR for H5N1 and found negative.
These samples and blood samples were saved for future viral isolation and serology if necessary.
Continuing surveillance
All movements of poultry and/or eggs out of the protection and surveillance zones are preceded by
PCR and clinical testing of all houses on the farm according to the following protocols.
1. Marketing of table eggs: Four egg sorting plants, located in the vicinity of the zones are authorized
to receive eggs from the zones. The farmers were informed in writing as to which plants they could
market their eggs. The vehicles that collect the eggs from the farms operate only in the protection and
the surveillance zones. The eggs are transferred to the egg sorting plant marked with the name of the
farm of origin and date of collection from the farm. These eggs are stored in a quarantine area. A
veterinarian visits each of the farms twice a week and clinically examines the birds. If any disease will
be suspected, appropriate samples will be obtained and sent to the laboratory. The veterinarian
informs a government poultry officer that the flocks are healthy and he, in turn, issues a permit to
release to the market eggs that had been collected from the farm at least 3 days prior to the
inspection.
2. Marketing of broilers and meat turkeys for slaughter or pullets to other farms: three poultry
slaughter houses, all located within or in the vicinity of the surveillance zone, are authorized to
slaughter and process broilers or turkeys from the zones. During the pre-slaughter inspection on the
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farm the clinical veterinarian samples tracheal and cloacal swabs by house, from all houses to be
marketed. These samples are sent to the Kimron Veterinary institute for Real Time PCR testing for
Influenza. Upon receiving a negative result a government poultry officer issues a permit to market the
birds. These permits are valid for 72 hours after sampling. In a similar fashion table egg layer pullets
and turkey poults are tested before being moved out of the zones.
3. Hatching eggs: The farmer samples tracheal and cloacal swabs by house, from all the houses on
the farm. These samples are sent to the Kimron Veterinary institute for Real Time PCR testing for
Influenza. Upon receiving a negative result a government poultry officer issues a permit to market the
hatching eggs to a hatchery. These permits are valid for 72 hours after sampling.
4. As of this date, none of the farms tested in the protection and surveillance zones have been found
to be infected with HPAI H5N1.
Monitoring activities of sick and dead wild birds in the zones has been stepped up.
Epidemiological investigation
The epidemiologic investigation revealed that no birds were introduced into the farm since the chicks
were placed and that no birds were moved out of the farm. The two workers on the farm had no
contact with other birds since the chicks were placed. Movements of the vaccinating crew and the
treating veterinarian have been investigated and three contact farms were identified. These three
farms are located with the surveillance zone and therefore are under the surveillance procedures.
Follow up (final) report to the OIE sent on 02/02/2010 is attached.
Feed was delivered to the poultry houses from outside the fence by underground feed pipes.
The epidemiological report did not revealed any specific reason concerning the introduction of the
virus into the affected poultry house. One possible scenario is the introduction of the virus by stepping
on infected droppings in the area between the sanitary facilities (where clothes and shoe changing
and showering take place) and the entrance to the poultry house. No foot baths were used at the
entrance to the houses. Within several kilometers of the farm there are fish ponds and sewage
treatment ponds which attract a high number of wild birds in general and water fowls specifically.
During the investigation, wild ducks, cormorants and aigrettes were seen flying over the farm.
Restriction zone
We would suggest setting up a restricted area around the outbreak. This restricted zone will be similar
to the ten kilometer radius but will be adjusted to follow roads and natural topographical boundaries
that the Member States can be sure to understand and will be able to check on. As shown on the
accompanying map (Figure 7) the restricted zone will be defined as follows:
On the west - road number 4.
On the south - road number 5812 connecting to road number 5815.
On the east – the security fence until road number 6513.
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On the north - road number 6513 until the junction with road 65. From this point in a straight
line to the entrance of Givat Nili and from there in a straight line to the junction of roads 652
and 4.
Figure 7. Restriction zone
Borders of restricted zone
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In addition to the villages listed in the protection and surveillance zones, the following four
additional villages are included in the restriction zone:
Reihan
Hibat Tzyion
Herev Laet
Elyachin
No hatching eggs, day old chicks or poultry products originating from the restricted zone will
be exported.
In view of the above, we will appreciate if you would approve the above zoning and permit
export to the EU from farms which are not under restrictions.
Thank you for your constant assistance and cooperation,
Sincerely yours
Dr. Moshe Chaimovitz
Director of Veterinary Services and Animal Health
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Final report submitted to the OIE Save the data and move to next page.
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Follow-up report No. 1: Report Details Outbreak Details Control and Epi Review and Submit Confirmation Reason Reoccurrence of a listed disease | Disease: Highly pathogenic avian influenza | Creating: Follow up report
Review Report
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Then answer the questions at the bottom of the page.
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Report Summary
Disease Highly pathogenic avian influenza Animal type Terrestrial
Causal Agent Highly pathogenic avian influenza virus Serotype(s) H5N1
Clinical Signs Yes Reason Reoccurrence of a listed disease
Date of first confirmation of the event
26/01/2010 Date of Start of Event 24/01/2010
Date of report 02/02/2010 Date Submitted To OIE
Diagnosis Suspicion, Clinical, Laboratory (basic), Laboratory (advanced), Necropsy
Date Of Last Occurrence 04/01/2008
Number Of Reported Outbreaks Submitted= 1, Draft= 0 Name of Sender of
the report Dr Michel Bellaiche
Address post office box 12 BEIT DAGAN 50250 Position Epidemiologist
Telephone +972(3)9681761 Fax +972(3)9681761 Email [email protected] Entered by Dr Michel Bellaiche Outbreak (other report - submitted) ( EN SHEMER HPAI ) Province District Unit Type Location Latitude Longitude Start date End DateHAIFA HADERA Farm EN SHEMER 32,4627779682 35,0053129119 24/01/2010 02/02/2010 Species Measuring units Susceptible Cases Deaths Destroyed SlaughteredBirds Animals 43000 1000 592 42408 0
Affected Population
The farm has three poultry houses that contain 43,000 heavy breeder pullets aged 16 weeks. These poultry houses are in a farm under extremely high biosecurity. Clinical signs occurred in only one house.
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Outbreak summary: Total outbreaks = 1 (Submitted) Species Susceptible Cases Deaths Destroyed SlaughteredBirds 43000 1000 592 42408 0Epidemiology
Epidemiological comments
All the birds have been culled until 29/09/2010. The epidemiological investigation suspects contact with wild bird droppings outside the affected poultry house.
Source of the outbreak(s) or origin of infection
• Unknown or inconclusive
Control Measures
Applied
• Stamping out • Quarantine • Movement control
inside the country • Screening • Zoning • Disinfection of infected
premises/establishment(s)
To be applied • No Planned Control
Measures
Animals treated No Vaccination Prohibited Yes
Country / Zone Country or zone the whole country Diagnostic test results Laboratory Type Name of Laboratory Species Test Type Date Results
Provided Result
National laboratory
Kimron Veterinary Institute, Avian and Fish Diseases Laboratory Birds real-time PCR 26/01/2010 Positive
Local laboratory
Northern Poultry Diseases Laboratory Birds polymerase chain
reaction (PCR) 26/01/2010 Positive
Local laboratory
Northern Poultry Diseases Laboratory Birds pathogen isolation by
egg inoculation 26/01/2010 Positive
Outbreak maps
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Final report
Future Reporting What further reports will be submitted in relation to this event?
The event is resolved. No more reports will be submitted.
The event is continuing. Weekly follow-up reports will be submitted.
The event is unlikely to be contained and is now considered to be endemic. No more follow-up reports will be made, but instead, information about this disease will be included in the future six-monthly reports.
Submit OIE reports Are you ready to officially submit this report to OIE? Yes. The report is ready for submission
No. Save the report as a draft for future editing and submission.
Save