Thursday, June 21, 2018

Bulgaria To Recall 1 Million Eggs Due To HPAI H5N8

Credit Wikipedia


About this time last summer we were following the considerable efforts of Russia's Federal Service for Veterinary and Phytosanitary Surveillance (Rosselkhoznadzor) to locate tons of HPAI Contaminated Poultry That Had Been Shipped To At Least 9 Regions Of Russia.
Even had bird flu contaminated products been consumed by the public, the risk of human infection was very low (particularly since the virus was H5N8).
But if live birds (or eggs) had been sent to other poultry facilities, or poultry products (meat or eggs) were disposed of improperly (where birds and wildlife could get at them), then there were legitimate concerns of seeing the virus spread further.

Last week, in Bulgarian Food Safety Agency Reports Avian Flu At Poultry Farm In Dobrich, we saw reports from Bulgarian Agency For Food Safety of an outbreak in Dobrich, a region which had been hit last March as well.
A follow up report last Friday indicated that a recall of eggs from the newly affected farm would be ordered, and that about 35,000 birds would be destroyed. 
Today, we've an official report estimating the number of eggs to be recalled at over a million, and unofficial media reports that 330,000 birds will now be destroyed.
While we await an OIE report, the FAO is reporting this outbreak is due to HPAI H5N8.
First this (translated) statement from the Bulgarian Agency For Food Safety.

Downloaded eggs pose no risk to public health 
The disease Influenza ( "flu") influenza is a highly contagious viral disease in birds. The disease has two forms (H5 and H7), which differ in their ability to infect:

  • Low pathogenic usually causes mild symptoms, often, but not always show clear signs of infection (remains "hidden");
  • Highly pathogenic form spreads rapidly and causes very high mortality rates in most poultry species. This form of the virus causes serious consequences and enormous financial losses to poultry.
The virus of avian influenza has the opportunity for rapid mutation (change) and switching from low pathogenic to highly.

For these reasons, early detection of infection in poultry and their rapid destruction is a key element of control to prevent the spread of infection in the country.

To prevent the spread of infection, creating restricted zones, prohibited the movement of poultry and the use of products liable to be contaminated, are enhanced biosecurity measures at all levels of poultry production (cleaning and disinfection of the infected holdings) performed surveillance (clinical examination and sampling, if necessary) the holdings in containment areas.

Measures to combat disease applied in a proportionate and flexible manner, taking into account different levels of risk of infection caused by various forms of the virus, the likely social and economic impact on the agricultural sector and the risk to public health and animal health.

Since early 2018 confirmed 11 outbreaks of bird flu - two on farms for laying hens and 9 in duck farms.

The latest outbreak was found on 13/06/2018 on a farm for laying hens.

Within the eradication of the outbreak and limiting the spread of the virus, NVS is condemned and withdrawn more than 1 041 220 the number of eggs that will be targeted for destruction.
Since the egg recall goes back nearly a month, there is a good chance some have already been sold to and consumed by the public, hence the safety reassurances from the Bulgarian authorities.

While I haven't seen an official statement on the number of birds to be culled, a media report from - based in part on a TV interview with Dr. Kremena Stoeva of the Bulgarian Agency for Food Safety (NVS) - indicates that number has now risen to over 300,000. 

Outbreak of bird flu in Dobrich, 320 thousand. Chickens will be culled 

The market again will be downloaded over 1 million. Eggs

Posted at 8:15 PM. On 21/06/2018

Outbreak of bird flu was discovered in Dobrich - village Donchevo. Holding in which the infection has been established is the largest producer of eggs in the country. It was decided that about 320,000 laying hens will be killed and all eggs produced after May 23 - to be destroyed.
Market pull batch numbers: 2BG08001 and 3BG08001. It's about more than 1 million. Pieces.

Since the beginning of the year, here are 11 confirmed outbreaks of bird flu - two on farms for laying hens and 9 in duck farms.

To prevent the spread of infection in Dobrich, locals are advised to keep poultry indoors. The feed also is not open.

From health inspection in Dobrich said for bTV, none of the workers on the farm, which was established bird flu, has not sought medical attention.

(Continue . . . )

After a relatively quiet spring, over the past 10 days we've seen an uptick in the number of avian flu reports, particularly across Europe and Russia.  Nothing dramatic, but certainly noticeable.

Yesterday morning's blog Russia Reporting Avian Flu Outbreaks In Samara, Penza & Kursk Regions, was further quantified a few hours later by an OIE report, detailing 16 new outbreaks in Russia.

Credit OIE
That OIE report  lists these outbreaks as HPAI H5, and does not provide a full subtype. While H5N8 seems a good bet, last December Russia reported an unusual outbreak of HPAI H5N2, and HPAI H5N6 has been reported in both Europe and Asia.
None of this tells us what kind of avian flu season Europe can expect next fall, but it is a reminder that a variety of HPAI H5 viruses continue to circulate in the wild across much of Europe and Asia.
And that last winter's welcomed lull in poultry and wild bird outbreaks isn't guaranteed to last.

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