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NOTIFIABLE AVIAN INFLUENZA EXPERIENCES IN

SOUTH AFRICA AND NAI PREPAREDNESS

MEASURESMARCH 2006

NOTIFIABLE AVIAN INFLUENZA EXPERIENCES IN

SOUTH AFRICA AND NAI PREPAREDNESS

MEASURESMARCH 2006

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NAI EXPERIENCES IN SOUTH AFRICANAI EXPERIENCES IN SOUTH AFRICA

OUTBREAK OSTRICHES IN 2004H5N2 SUBTYPEEASTERN CAPE PROVINCE

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NAI EXPERIENCES IN SOUTH AFRICANAI EXPERIENCES IN SOUTH AFRICA

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NAI EXPERIENCES IN SOUTH AFRICANAI EXPERIENCES IN SOUTH AFRICA

CONTROL MEASURES• CULLING POLICY• ADDITIONAL MEASURES

–30km control zone–Movement control measures–Countrywide export ban–Countrywide surveillance–Forward and backward

tracing

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9

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EASTERN CAPE PROVINCEAVIAN INFLUENZAEASTERN CAPE PROVINCEAVIAN INFLUENZA

Serology• Test for >10% prevalence at 95% confidence• HI for ostrich serum• ELISA screening for chicken serum with HI confirmation

No. of Farms TestedNo. of Positive

Farms

Ostriches 519 19

Commercial Chickens

10 0

Farmyard Chickens 133 0

Pigs in area 330 0

Wild Birds 86 0

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EASTERN CAPE PROVINCEAVIAN INFLUENZAEASTERN CAPE PROVINCEAVIAN INFLUENZA

Virus isolation

• Embryonated eggs

• PCR & NASBA

No. of Farms Seropositive

Positive Virus Result

Number of ostrich farms

16

8 farms

(16748 tracheal and cloacal

swabs & post-mortems)

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EASTERN CAPE PROVINCEAVIAN INFLUENZAEASTERN CAPE PROVINCEAVIAN INFLUENZA

Eradication Campaign

• All ostriches on seropositive farms

• All poultry in 3km radius around seropositive farms

• Disinfection and minimum 30 day standstill of infected farms

• Controlled restocking programme

• Serological retesting of all ostrich farms in Province: All negative on two occasions.

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NAI EXPERIENCES IN SOUTH AFRICANAI EXPERIENCES IN SOUTH AFRICA

WESTERN CAPE PROVINCE

• SURVEILLANCE YIELDED POSITIVES ON SEROLOGY

• NO SICK OSTRICHES

• CONTROLLED SLAUGHTER

CHICKENS

• NEGATIVE ENTIRE COUNTRY

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NAI EXPERIENCES IN SOUTH AFRICANAI EXPERIENCES IN SOUTH AFRICA

EXTENSIVE SURVEILLANCE IN 2005• COMMERCIAL OSTRICH FARMS• COMMERICAL CHICKEN FARMS• NON-COMMERCIAL CHICKEN FARMS

DECLARATION NAI FREEDOM: • 15 SEPTEMBER 2005

NAI FREE STATUS ACCEPTED BY:• EU• OIE

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NAI PREPAREDNESS IN SOUTH AFRICANAI PREPAREDNESS IN SOUTH AFRICA

NAI PREPAREDNESS IN SOUTH AFRICA

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NAI PREPAREDNES MEASURES IN SOUTH AFRICANAI PREPAREDNES MEASURES IN SOUTH AFRICA

PREVENT INTRODUCTION OF NAI VIRUS• IMPORT CONTROL MEASURES

– LIVE POULTRY- NAI FREE COUNTRIES PAST 6 MONTHS

- PRE-IMPORT TESTING, QUARANTINE, RETESTED

– POULTRY PRODUCTS- MEAT: NAI FREE COUNTRIES PAST 6

MONTHS

- OTHER PRODUCTS: TREATMENT TO INACTIVATE VIRUS

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NAI PREPAREDNESS MEASURES IN SOUTH AFRICANAI PREPAREDNESS MEASURES IN SOUTH AFRICA

PREVENT INTRODUCTION OF NAI VIRUS

• IMPORT CONTROL MEASURES (cont)

–BIRDS

–OTHER SPECIES:

- PIGS, CATS

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NAI PREPAREDNESS MEASURES IN SOUTH AFRICANAI PREPAREDNESS MEASURES IN SOUTH AFRICA

PROOF OF CONTINUED FREEDOM• EXTENSIVE SURVEILLANCE

PROGRAMME– COMMERCIAL OSTRICHES– COMMERCIAL CHICKENS– NON-COMMERCIAL CHICKENS

• SURVEILLANCE IN MIGRATORY BIRDS

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NAI PREPAREDNESS MEASURES IN SOUTH AFRICANAI PREPAREDNESS MEASURES IN SOUTH AFRICA

IN CASE OF INTRODUCTION OF NAI VIRUS• CONTINGENCY PLAN

– SUSPECTED/CONFIRMED OUTBREAK

– QUARANTINE– MOVEMENT CONTROL– DEPOPULATION– VACCINATION

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NAI PREPAREDNESS MEASURES IN SOUTH AFRICANAI PREPAREDNESS MEASURES IN SOUTH AFRICA

ACTIVATION OF DISASTER MANAGEMENT SYSTEM

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NAI PREPAREDNESS MEASURES IN SOUTH AFRICANAI PREPAREDNESS MEASURES IN SOUTH AFRICA

MINISTER OF AGRICULTURE - ACTIVATION OF OTHER ROLE PLAYERS AT MINISTERIAL LEVEL

• MINISTER OF DEFENCE• MINISTER SAFETY AND SECURITY• DPLG:

– NATIONAL DISASTER MANAGEMENT

CASCADE:• NATIONAL CO-ORDINATION• PROVINCIAL CO-ORDINATION• LOCAL

– EXECUTION CONTROL ACTIVITIES

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NAI PREPAREDNESS MEASURES IN SOUTH AFRICANAI PREPAREDNESS MEASURES IN SOUTH AFRICA

CONCLUSION