bird flu

Avian Influenza

Avian influenza, also known as bird flu, is a viral disease that primarily affects birds. There are many different strains of the virus, some of which are more dangerous than others.

Globally, AI has been seen to be a problem mostly in the developing, rather than western, world. However, whilst Defra and the Animal and Plant Health Agency do their best to keep the disease out, it is impossible to prevent it. It makes its way into the UK with migrating wild birds and can all-to-easily be transferred to domesticated birds. Whilst there are AI vaccines, these have their limitations and in the UK the vaccination of poultry and most captive birds against AI is not currently permitted.

During the autumn of 2021 there were multiple findings of the highly pathogenic strain of HPA1 H5N1 in wild birds and following its confirmation in poultry, the UK was declared no longer free from AI under the World Organisation for Animal Health (OIE) rules. This led to an Avian Influenza Prevention Zone (APIZ) being declared across Great Britain on November 3 requiring all bird keepers by law to take a range of biosecurity precautions. It also brought in a ban on all gatherings. A further requirement was imposed from November 29, making housing mandatory.

Advice and what to do:

Bird flu (also called avian influenza) is a notifiable, infectious disease that affects both wild and kept poultry. The disease is taken very seriously as it's devastating to birds, spreads very fast and whilst some strains have the potential to jump from birds to humans, this is very rare.

The UK's devolved administrations may decide to declare an Avian Influenza Prevention Zone (AIPZ), either regionally, or across the whole of the UK to help reduce the risk of the disease spreading.

  • Bird flu is a notifiable animal disease. If you suspect any type of avian influenza in poultry or captive birds you must report it immediately by calling the Defra Rural Services Helpline on: 03000 200 301. In Wales, contact: 0300 303 8268.

  • If you find dead wild waterfowl (swans, geese or ducks) or other dead wild birds, such as gulls or birds of prey, you should report them to the Defra helpline (03459 33 55 77 - please select option 7). You can also report dead wild birds to defra on their website. Don't touch or pick up any dead or visibly sick birds that you find.

All bird keepers (whether you have pet birds, commercial flocks or just a few birds in a backyard flock) must keep a close watch on them for signs of disease and maintain good biosecurity at all times. This is especially relevant if your birds are in a Higher Risk Area (HRA). If you have any concerns about the health of your birds, seek prompt  advice from your vet.

You should register your poultry, even if only kept as pets, so Defra can contact you during an outbreak. This is a legal requirement if you have 50 or more birds. Poultry includes chickens, ducks, turkeys, geese, pigeon (bred for meat), partridge, quail, guinea fowl and pheasants.

Keepers can check where disease control zones and AIPZs are located in GB and if they are in a zone on the animal and plant health ahgency’s map.

To receive immediate notification of new cases and updated zones in GB please sign up to the APHA’s Animal Disease alert subscription service further details can be found on the link below

Keeping Birds:

Preventing the spread of avian influenza involves taking several precautions, including practicing good hygiene, avoiding contact with sick birds or their faeces, and cooking poultry products thoroughly. It's a legal requirement for all bird keepers (whether they have commercial flocks, a few birds in a backyard flock or pet birds) to follow strict biosecurity measures. Keepers with more than 500 birds need to restrict access for non-essential people on their sites, workers need to change clothing and footwear before entering bird enclosures and site vehicles need to be cleaned and disinfected regularly.

The prevention zone means bird keepers must:

  • Ensure the areas where birds are kept are unattractive to wild birds, for example by netting ponds, and by removing wild bird food sources.

  • Feed and water kept indoors or enclosed areas to discourage wild birds.

  • Minimise movement in and out of bird enclosures.

  • Clean and disinfect footwear and keep areas where birds live clean and tidy.

  • Reduce any existing contamination by cleansing and disinfecting concrete areas, and fencing off wet or boggy areas.

Avian Influenza can be devastating to the poultry industry, we’re already seeing the knock-on effects of the culling last year with limited egg availability in the shops!

The hens are currently under a housing order put in place by the government, we’re hoping that this will be lifted shortly, last years housing order was in place for over 16 weeks, which meant all the eggs in the UK had to change their classification to ‘barn raised’. We’re hoping this doesn’t happen this time! We’re all keeping our fingers crossed that the hens will be out in the sunshine soon!

Bird Flu

So yesterday there was news of an outbreak of bird flu at a farm in Suffolk. Unfortunately for the farmer, the 27,000 birds will need to be culled. This is such devastating news, as we know how long it takes to build up such a large flock. The birds were found to have the H5 strain of avian flu, this is a ‘low pathogenic avian flu’. Other bird keepers in the area should remain alert for any signs of disease. I’ve put together this blog post just to make people more aware of what bird flu is and what it looks like in both animals and humans.

What is bird flu?

“Bird flu” is the name given to several strains of virulent influenza that can be transmitted from birds to humans. The primary strains that are cause for concern are H1N1 (since 1997) and H7N9 (since 2013). There are two forms of avian influenza: low pathogenicity (LPAI) and high pathogenicity (HPAI).

What are the symptoms?

High temperature, nausea, cough; the same as flu. However, within days of initial symptoms appearing, victims can suffer potentially fatal complications, such as pneumonia or organ failure.

How do you catch it?

Generally through prolonged contact with an infected bird, dead or alive. Chickens, ducks, turkeys and geese can all be infected with the virus and not show signs of illness. You can't be infected through eating cooked poultry or poultry products.

Do I have bird flu?

If you have the symptoms of flu and you have visited an area affected by bird flu in the last two weeks, you’re advised to contact your GP. Your diagnosis will be based on your symptoms and the likelihood you have been exposed to an infected bird. This will then be tested via a chest X-ray, blood tests, nose and throat swabs.

What is the treatment?

As with regular flu: rest, plenty of fluids, paracetamol to bring down your temperature. The NHS has stockpiled antiviral medication in the event of a UK outbreak, which will reduce the severity of symptoms. Bird flu victims will generally be treated at home, or in isolation at a hospital.

How do I tell if my bird has bird flu?

The only way to confirm if your chickens have Avian Influenza is a laboratory test. However, there are a few signs that you should look out for:

  • Blueness of the head area

  • Reduction in their appetite

  • Wet eyes

  • Excessive flock huddling and ruffled feathers

  • Fluid in the comb and wattles

  • Decrease in egg production

  • Coughing

  • Legs bleeding underneath the skin

  • Sudden death

  • A general decrease in roaming and activity

If you notice any of these symptoms in your chickens then make sure the properly quarantine them immediately.

There are a few things that you can do to prevent bird flu

Restrict wild birds - The most effective measure you can take is to stop wild birds from coming into contact with your chickens. You could also add a roof to your pen as this would stop infected droppings from entering the pens, although the odds of that happening are very slim!

Keep things clean and tidy - Keep your feeders and water units clean and don’t let wild birds have access to these. Thoroughly clean any piece of equipment that comes into contact with your birds, you can you Virkon S.

Clean up any food spillages, so that you don’t attract wild birds. Clean and disinfect your coop weekly, again you can use Virkon S for this. Have dedicated clothing and footwear for handling your chickens. Ensure that you don’t wear these clothes for anything else, especially when visiting another flock.

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Frequently asked questions about bird flu

Q: What happens if I eat an egg which was laid by a chicken with Bird Flu?

Chickens infected with highly pathogenic avian influenza don’t normally lay eggs. However if you did eat an egg laid by a chicken with bird flu, the World Health Organisation reports “Proper cooking inactivates the virus present inside the eggs”.

Q: Can I eat a chicken contaminated with Bird Flu?

If you cooked the infected chicken so its temperature rises above 70°Celsius and make sure no meat is raw or red then it should be safe to eat.

Q: Should I Start My First Flock Now?

Some people have said that they are cautious about getting chickens while there is the scare of bird flu. This is an overly-cautious step and if you want to get chickens and raise them you should! Just make sure to purchase your pullets from a reputable dealer and follow the safety steps outlined above and you should be fine.

Hopefully you’ll feel a bit more informed about what bird flu is and how you could potentially prevent it in your flock. If you’re concerned about bird flu in your flock, make sure that you speak to your vet for advice on what to do next!