AVIAN INFLUENZA

Question 1

PQ - DIVA in Avian influenza – additional question !

Answer 1

• Vaccination strategy enabling differentiation between vaccinated/infected and vaccinated/non-infected
• through diagnostic tests detecting antibodies against field virus and use of non-vaccinated sentinel birds

Question 2

Definition of avian influenza – likely additional question

Answer 2

• Infectious disease of poultry or other captive birds
• Caused by any Influenza A virus
  of serotypes H5 or H7
  or with IV pathogenicity index in six-week-old chicken > 1.2

Question 3

Measures in holdings with suspected HPAI outbreaks – likely additional question

Answer 3

• Census:
  all poultry, other captive birds AND all domestic mammals
  already sick, dead or likely to be infected in each category
  Daily update, throughout suspected outbreak, and upon authority request
• Isolation of all poultry, captive birds inside a building, no contact with wild birds
• Official surveillance
• Biosecurity measures with restricted movement
• Strict disinfection of entrance, exits of building and holding
• Stamping out may be applied (without confirmation)
• Temporary control zones may be establish

Question 4

Measures in holdings with confirmed HPAI outbreaks – likely additional question

Answer 4

• Stamping out of all poultry and captive birds without delay, under supervision
  Possible derogations for valuable, pet, wildlife park, protected but considering the risk of further spreading
• Disposal of all carcasses and eggs under official supervision
• Official surveillance of already hatched poultry
• Tracing and disposal of meat and hatching eggs produced during incubation period
• Tracing, destruction or treatment of all likely contaminated substances and waste
• Treatment of likely contaminated buildings, pastures, equipment, vehicles
• No movement without authorization of other captive birds and domestic mammals
  in contact with living areas for humans
• Identification of genetic subtype by the laboratory in case of primary outbreak
• Reintroduction after 21 days after disinfection

Question 5

Measures in protection zone in case of HPAI – likely additional question

Answer 5

> 3 km radius protection zone
- Census of all holdings ASAP
- Restrictive measures for minimum 21 days after preliminary disinfection
- General measures
- All poultry and captive birds inside a building
- Disposal of all carcasses ASAP
- Treatment of likely contaminated vehicle and equipment
- No transport on roads of poultry, captive bird, eggs, carcasses
- No fair, markets, poultry gathering
- Restricted movement of all poultry, other captive birds and domestic mammals in contact with living areas for humans
- Biosecurity measures and recording of persons visiting the holdings
- Monitoring morbidity or mortality or significant production drop (by farmer)
- Testing holdings before lifting measures
- After 21 days → measures of surveillance zone apply

Question 6

Measures in surveillance zone in case of HPAI – likely additional question

Answer 6

> 10km radius surveillance zone
- Prohibited vaccination
- Measures for minimum 30 days
- Same measures as protection zone