Monday, December 05, 2016

ESA: Epidemiological Summary Of H5N8 In Europe


The resource center of Epidemiosurveillance Santé Animale has published a detailed European-wide summary of H5N8's progress since it first emerged in October. As the map above illustrates, the virus has now been detected across much of west central Europe.
As of their cut-off date (Dec 4th), 268 outbreaks and cases have been reported, an increase of 102 since November 28th.

Excerpts from the (translated) report follow:

International Health Surveillance (IVS) ESA platform - France         NRL Avian Influenza, Anses laboratory Ploufragan - France National Office for Hunting and Wildlife - France Source: Data updated on 11.5.2016 (at 0h) ADNS / FAO / OIE, Switzerland OSAv the communication

Since the last point position on 28 November , new highly pathogenic avian influenza (HPAI) subtype H5N8 were reported in Europe, mostly in Germany and Hungary. The total number of outbreaks and cases reported continues to increase and is now 268 (compared to 166 last week to 28 November) including 192 in wild birds (33 species), 70 farms and 6 within the captive birds (Tables 1 & 2).  

Since the last note of November 28, new European countries (at large) are now affected by the HPAI H5N8 virus: Romania with a focus in wildlife and Ukraine with a home in a farming ( species undetermined). The farms are now affected in the Netherlands with a first outbreak declared on November 28 at a farm 10 000 birds (species not identified). Finland reported a first outbreak in wild birds captive the 1 st December in a zoo (after reporting a case birdlife November 25).  

France said the first outbreaks in duck farms, with two homes with clinical manifestations (and five direct epidemiological link) reported on 2 December. Bird farms are now affected in Poland with the first reported outbreak December 4 in a livestock holding 1839 fattening geese.

HPAI H5N8 situation in France is detailed in notes 2 December ( link ) and 30 November ( link ).

HP H5N8 virus is also present beyond Europe. An outbreak of HPAI H5N8 was declared November 13, 2016 in a breeding poultry breeding in Israel. Cases have also been reported for the first time in Egypt on November 30 in two coots ( Fulica atra ), Ukraine on November 30 in a livestock (species not identified) and Tunisia on 1 st December 17 coots Coots ( Fulica atra ) and 13 wigeon ( Anas penelope ). The virus also circulates in Russia, with a reported outbreak in wild birds in June 2016 and two outbreaks reported November 23 within domestic flocks (geese, chickens and guinea fowl).
(SNIP Charts)

The reported mortality in livestock vary according to species. For mono-specific farming: from 0.3 to 33% but only four farms to the species Gallus gallus , around 20% in turkey farms (but only on two farms), 0 to 70% in palmipeds (of 21 farms, knowing that this mortality is between 10 and 70% for 6 of these 21 farms). Despite all the caution that one must have in interpreting (time of intervention in relation to infection, farms in epidemiological link could be the beginning of infection, etc.), it should be noted that this strain appears to have an unusual virulence in domestic waterfowl.
The 33 different species of birds in affected wild birds in Europe with their families are:
  • Accipitridae  : Buzzard, White-tailed Eagle
  • Anatidae: Teal, Common Pochard, Tufted Duck, Common Goldeneye eye, Mute Swan, Whooper Swan, Red-crested Pochard, Common Shelduck, Mallard, Wigeon, Gadwall, Common Eider, Goose spp.
  • Ardeidae: Grey Heron
  • Corvidae: Magpie
  • Dromaiidés: Emus
  • Falcon: Peregrine Falcon
  • Gulls: Black-headed Gull, Gull Huahine, Herring Gull, Black-backed Gull, Mew Gull, Gull, Yellow-legged Gull
  • Pelecanidés : Pélican spp.
  • Podicipedidae: Great Crested Grebe, Little Grebe
  • Rallidae: Common Moorhen, Eurasian Coot
  • Scolopacidae: Curlew spp and Green Sandpiper
         (Continue . . . )

No comments: