1 / 15

Highly Pathogenic Avian influenza H5N8

Highly Pathogenic Avian influenza H5N8. UPDATED PRESENTATION TO THE PORTFOLIO COMMITTEE ON AGRICULTURE, FORESTRY AND FISHERIES 1 August 2017. Contents of the presentation. Acronyms Background Current Outbreaks within SA Actions taken Possible economic impact. Acronyms. Background.

saavedrav
Télécharger la présentation

Highly Pathogenic Avian influenza H5N8

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Highly Pathogenic Avian influenza H5N8 UPDATED PRESENTATION TO THE PORTFOLIO COMMITTEE ON AGRICULTURE, FORESTRY AND FISHERIES 1 August 2017

  2. Contents of the presentation • Acronyms • Background • Current Outbreaks within SA • Actions taken • Possible economic impact

  3. Acronyms

  4. Background It is a virus that affects both domestic and wild birds It has less frequently been isolated from other mammalian species It is classified into subtypes based on two surface proteins: • Hemagglutinin (HA) of which there are at least 16 (H1 to H16) subtypes • Neuraminidase (NA) of which there are 9 (N1 to N9) subtypes These strains are further classified into two categories according to the severity of diseases: • Low pathogenic avian influenza (LPAI) • Highly pathogenic avian influenza (HPAI) LPAI strains cause few or no clinical signs in poultry HPAI strains can cause severe clinical signs and potentially high mortality rates among poultry

  5. …Background The avian influenza virus is shed in faeces and respiratory secretions of infected birds The virus can therefore be spread through direct contact with the secretions of infected birds or through contaminated water and feed Wild water birds are reservoirs of the avian influenza virus and the virus may therefore be transmitted through wild birds and their migratory routes The virus may also be carried on fomites e.g. farm equipment and clothing of people that came in contact with infected material

  6. Current outbreaks within South Africa On 22 June 2017 DAFF was notified of high mortalities on a breeder flock in Mpumalanga Province with the closest town being Villiers (FS). Samples that were collected yielded positive results for HPAI H5N8. The total number of outbreaks detected To date (Monday 31 July) is 10. • 4 outbreaks on commercial farms • 3 outbreaks in wild birds • 1 outbreak in birds kept as a hobby • 2 outbreaks in backyard chickens

  7. …Current outbreaks within South Africa From further sequencing and genetic analysis results by the ARC-Onderstepoort Veterinary Research the 1st outbreak close to Villiers and the 2nd outbreak in Val appears to be two separate introductions into the country. The 1st outbreak close to Villiers is more related to an Egypt outbreak strain with a 1% difference between the Egypt strain and this South Africa strain. The 2nd outbreak in Val is related to the Zimbabwean isolate with less than a 1% difference.

  8. Actions taken • All suspected cases are being followed-up immediately The following control measures are immediately imposed: • Farms placed under quarantine (nothing allowed to move off the farm) • Eggs destroyed • Depopulation of affected sites • Carcasses, waste material, affected eggs and manure have been contained and will be dealt with to ensure prevention of spread of the disease as well as to prevent contamination of the environment. • On the hobbies farm, ducks were culled and all the other birds kept under quarantine and clinical observation • DAFF is obtaining legal and financial advice in order to finalise the incentivisation/ compensation policy for these HPAI outbreaks • A ban was introduced on the sale of live chickens to manage further spread but this initial complete ban has affected a number of livelihoods; this ban has been modified with conditions placed for the sale and distribution of live culls.

  9. Avian Influenza in Chickens: H5N8

  10. Avian Influenza in Chickens: Zoomed In

  11. Possible Economic Impact Number of chickens at risk and values (Figures extrapolated from 2007) Commercial Layers 17 million (R52 each) R884 000 000 Broilers 624 million ( R35 each) R21 840 000 000 Parents 7 million at (R950 each) R6 650 000 000 Total 648 million (chickens) R29 374 000 000 Non commercial All categories 1.5 million at R35 each R525 000 000 Grand Total 649, 5 million R29 899 000 000 Gross value of animal products R36.670 billion (2016) Combined gross poultry income for 2016 R46.861 billion (2016) Broiler and egg producers in rand value, still the largest segment of South African Agriculture at 18% (2016)

  12. Possible Economic Impact: Trade

  13. Possible Economic Impact: Trade Neighboring countries have opened trade of meat, eggs and chicks from compartments with high biosecurity measures, and monthly AI monitoring.

  14. Situation related to employment at affected farms (based on information supplied) and food losses (Estimate) FARM NAME No, OF JOBS Production losses Hens Eggs per day First Farm 50 190 000 190 000 (Hatching) Second Farm 60 256 000 256 000 (Table) Third farm 14 7000 7000 (Table) Fourth farm (1) 50 240 000 240 000 (Table) Forth Farm (2) 50 120 000 120000 (Table) TOTAL 224 813 000 623 000(table) :190 000 (hatching) Estimate cost of egg at R1 per egg

  15. THANK YOU

More Related