Avian Flu: What’s it?
The avian influenza, additionally known as merely fowl flu or avian flu, is brought on by the influenza
A virus, and notably the H5N1 pressure of the Extremely Pathogenic Avian Influenza (HPAI) virus. It’s a illness in birds that may be transmitted to different mammals reminiscent of cats. Cats appear to be significantly delicate to this illness with a mortality charge between 50 to 71%.
The signs in cats embrace neurologic indicators reminiscent of seizures, lack of urge for food, fever, and respiratory signs reminiscent of nasal and eye discharge.
Since 1997, outbreaks of the avian flu H5N1 have been common in numerous elements of the world. The dangers for people stay low with extraordinarily uncommon circumstances of person-to-person unfold of the virus. Moreover, there have been no circumstances of cats-to-human transmission of this H5N1 avian flu.
There may be presently an outbreak within the USA since late 2021 with a current improve in 2024. Nonetheless, as a result of outbreaks are sometimes linked to migrating wild birds they’re typically seasonal. The present outbreak within the US is the principle focus of this text, because the dying of a cat after consuming a industrial uncooked weight loss program has rightfully brought on widespread concern.
What’s presently the state of affairs within the USA?
Uncooked Dairy Recollects
The H5N1 virus has unfold to dairy cows within the USA, main to 2 remembers of uncooked dairy merchandise, in addition to the dying of a minimum of 5 cats in December 2024. In Los Angeles County, two cats died following the consumption of the Uncooked Farm, LLC recalled merchandise. Investigations are nonetheless ongoing relating to the three different cats; these cats, nevertheless, weren’t uncovered to uncooked milk.
There are presently two remembers of uncooked dairy (uncooked milk and cream) for the avian flu within the USA.
On December 3, 2024, all sizes of uncooked entire milk and cream merchandise produced by Uncooked Farm, LLC after November 9 had been recalled by the California Division of Meals and Agriculture. Whereas not recalled, the California Division of Public Well being recommends to not devour any merchandise produced by Uncooked Farm, LLC, together with their uncooked milk pet meals topper and pet meals kefir.
You will discover right here a listing of the retailers who bought these merchandise: http://www.publichealth.lacounty.gov/phcommon/public/media/mediapubhpdetail.cfm?prid=4892
On December 14, 2024, the California Division of Meals and Agriculture issued a recall for all “Valley Milk Merely Bottled Uncooked Cow Milk” and “DESI Milk Uncooked Cow Milk” distributed in quart (32 oz), half-gallon (64 oz), and one-gallon (128 oz) plastic jugs with a code date marked on the container of DEC 23 2024 via DEC 30 2024.
Northwest Naturals recall
Since December 24, 2024, there’s an ongoing recall of the 2lb Turkey Recipe uncooked & frozen pet meals from the model Northwest Naturals from Portland, Oregon, following the dying of 1 cat consuming this uncooked meals. It was confirmed that the uncooked meat examined constructive for the H5N1 virus and was genetically matching the virus of the contaminated cat. The cat was an indoor-only cat, so contamination from wild birds wasn’t potential.
The recalled product is packaged in 2-pound plastic luggage with “Finest if utilized by” dates of 05/21/26 B10 and 06/23/2026 B1. The product was bought via distributors in AZ, CA, CO, FL, GA, IL, MD, MI, MN, PA, RI, and WA in the US, and British Columbia in Canada. If in case you have bought the recalled product, you must instantly discard the product and cease feeding it.
Northwest Naturals is a model that makes use of HPP (Excessive Stress Processing), a course of that ought to have killed the H5N1 virus. This poses questions in regards to the supposed effectivity of this course of as a security measure relating to the avian flu, or if some cross-contamination occurred after this step.
Moreover, Northwest Naturals is a model utilizing meat from USDA-inspected services and made in a USDA-approved facility; nevertheless, contamination in USDA services hasn’t been reported.
So this case opens some questions, and I hope that we get extra data on this topic. Within the meantime, you could find right here the FAQ from Northwest Naturals: https://www.nw-naturals.net/recall-faqs/
Earlier outbreaks on the earth
Listed below are some of the earlier outbreaks of avian flu reported in cats. It’s essential to notice that the consumption of uncooked meat isn’t the one threat issue, as cats with out of doors entry would possibly hunt or eat contaminated wild birds.
One of many first circumstances of a cat dying of the avian flu was in Thailand in 2004 following the ingestion of an contaminated pigeon carcass by a cat with out of doors entry.
In France, a single cat was contaminated by the avian flu on the finish of 2022 following contact with a neighboring affected breeding duck farm.
In 2023 in Nebraska, USA, three out of doors cats died as a result of avian flu, seemingly contracted from contaminated wild birds.
In 2023 in South Korea, in two shelters, round 38 cats died following the consumption of a industrial uncooked duck weight loss program contaminated by the H5N1 virus. Nonetheless, the weight loss program recalled was additionally fed in 286 households with out reported points.
In 2023 in Poland, 25 cats died of the fowl flu. Nonetheless, it is unclear what the vector of an infection was, as some cats ate uncooked rooster, whereas others had out of doors entry and had been fed a industrial cooked weight loss program.
In Kansas and Texas in March 2024, cats in a number of contaminated dairy cattle farms died, seemingly following the ingestion of uncooked milk and colostrum from contaminated cows. It’s seemingly that the cows had been initially contaminated following the ingestion of feed contaminated by the feces of untamed birds contaminated with the HPAI. Additional transmission from cow to cow may need been potential throughout switch between herds.
The place the virus might be discovered
Poultry Meat
When birds are contaminated by an HPAI virus, the an infection spreads to the entire physique, and so the virus might be discovered within the meat, in addition to the eggs and eggshells.
Poultry meat is inclined to being contaminated by the virus, reminiscent of:
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Rooster
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Turkey
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Quail
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Duck
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Guinea Fowl
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Pheasant
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Goose
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Eggs and eggshells
Nonetheless, presently, there hasn’t been any recall within the human meals chain as a result of avian flu in poultry meat. The USDA signifies that the possibility of contaminated poultry meat coming into the meals chain is low, as a extremely pathogenic avian influenza response plan ought to forestall contaminated birds from coming into the meals provide. Poultry flocks are examined for H5N1 and are inspected earlier than and after slaughter, which is assured by the seal “Inspected for wholesomeness by the U.S. Division of Agriculture.”
At present, the outbreaks in poultry flocks are designated as “sporadic” within the US.
Different Uncooked Meats
As a result of bird-to-mammal contamination is feasible, the virus might be present in mammal meat. Nonetheless, in the mean time, the USDA signifies that no H5N1 virus has been present in retail floor beef samples from the states wherein dairy cattle herds have examined constructive for the H5N1 virus.
Since September, dairy cows are examined at slaughter in order that contaminated meat doesn’t enter the human meals provide.
One case of swine contamination has been reported within the USA; nevertheless, it was in a non-commercial farm and never destined for the meals provide.
The detection of H5N1 in mammals is designated in the mean time as “sporadic” within the US.
Uncooked Milk & Dairy
The H5N1 virus has been present in dairy cattle, and as a consequence, uncooked milk and dairy merchandise from contaminated cows also can carry the avian flu virus.
A Nationwide Milk Testing Technique was put in place in December 2024 to be able to take a look at unpasteurized milk for the avian flu.
The outbreak in dairy cattle is designated as an “ongoing multi-state outbreak” within the US and is essentially the most regarding in the mean time.
Wild Birds
Wild birds, and particularly aquatic birds and waterfowl (reminiscent of gulls, terns, shorebirds, geese, geese, and swans), are the pure hosts of the avian flu. They’re typically asymptomatic. Outbreaks in home poultry are sometimes linked to contact with contaminated wild birds.
Many circumstances of avian flu in cats could have been brought on by contact with wild birds. That’s why it’s really useful to maintain cats indoors or forestall them from looking in areas with contaminated wild birds.
At present, the avian flu detection in wild birds is widespread within the USA.
What must you do?
Cooking
The virus is inactivated by cooking beef at an inside temperature of 145°F or 63°C, and it is suggested to prepare dinner poultry at an inside temperature of 165°F or 74°C. Canned meals and kibbles are cooked and heated at excessive temperatures, so they’re secure to feed.
Switching to a selfmade cooked weight loss program is the simplest and most secure measure to place in place if you’re presently feeding a selfmade uncooked weight loss program.
Nonetheless, feeding a selfmade cooked weight loss program has some variations from a selfmade uncooked weight loss program. Right here is an outline of the most important modifications.
For a easy approach to feed a cooked weight loss program, you need to use a meal completer as defined in this article.
Taurine
As a result of taurine is water-soluble and has a lowered bioavailability after cooking, it is really useful to add taurine to a cooked weight loss program. You will discover extra data in this article on taurine.
B-vitamins
Many B-vitamins are delicate to warmth, so it is essential to guarantee that a complement offering B-vitamins is included within the weight loss program. It may very well be dietary yeast or a B-complex with an applicable dosage.
Uncooked Meaty Bones
Uncooked meaty bones should not be cooked, as cooked bones are liable to splintering and are tougher to digest than uncooked bones. So uncooked meaty bones will must be changed in a cooked weight loss program.
Potential dietary supplements are:
The dosage and appropriateness of every calcium complement rely in your cat’s profile and recipe.
Business uncooked weight loss program
Not all industrial uncooked diets might be safely cooked as they’ll include bones, which aren’t secure to prepare dinner, particularly if they don’t seem to be very finely floor. As well as, cooking also can change the dietary worth of the meals, so it’s not assured to stay full and balanced.
Earlier than cooking a industrial uncooked weight loss program, enquire from the model if it may be safely cooked and what’s the really useful course of.
HPP
HPP (excessive stress processing) is a pressure-based meals processing methodology used to kill micro organism and viruses in uncooked meat whereas retaining the meals uncooked. It is a course of that many uncooked pet meals corporations use to make sure the protection of their meals.
In keeping with two research, HPP is a course of that must be environment friendly towards the HPAI virus, however it wasn’t particularly examined on the H5N1 pressure. Nonetheless, due to the recall of the Northwest Naturals model that used this course of, I might advocate not contemplating it environment friendly so long as we do not have additional data on the causes of the contamination on this recall.
Pasteurization
Pasteurization is a course of wherein uncooked milk may be very shortly heated, killing micro organism and viruses, making it secure to be consumed. Research have proven that pasteurization is environment friendly towards HPAI viruses.
Moreover, one experimental research has proven that easy selfmade recipes, reminiscent of yogurt and cheese, inactivated the H5N1 virus.
Freeze-Drying
Freeze-drying is a course of typically used to stabilize and protect viruses for research or within the context of vaccine formulation. So freeze-dried uncooked meat must be thought of like uncooked meat; nevertheless, freeze-dried cooked meat is secure because it was cooked earlier than being freeze-dried.
If in case you have freeze-dried treats or meals, inquire from the model in the event that they had been cooked earlier than the freeze-drying course of, wherein case they’re secure to feed.
In any other case, you need to use boiling water to prepare dinner the freeze-dried meats (don’t prepare dinner freeze-dried bones) above 165°F or 74°C, making it secure to feed.
Freezing
Freezing just isn’t environment friendly towards the H5N1 virus, so frozen uncooked meat just isn’t thought of secure.
Exterior the USA
In case you are not positioned within the USA: Don’t panic!
Verify the state of affairs of the avian flu in your area or nation. The epidemic is presently lively within the USA, however it doesn’t imply that it’s a difficulty in your nation. For instance, Australia is presently freed from the H5N1 virus.
Moreover, test the protection measures in your nation relating to meals security and avian flu prevention, as they’ll affect the chance of contaminated meat ending up within the meals provide chain.
In France, the place I’m positioned, the danger was labeled as “excessive” in November 2024, as outbreaks had been detected since August 2024. France was then labeled as indemn on 17 December 2024, as no outbreaks had been detected for a month. Nonetheless, on the twenty seventh, an outbreak was detected in a single area.
The security measures in place rely upon the classification of the dangers to make sure the protection of the meals provide. When the avian flu is detected in a flock, your entire flock is culled and incinerated. A security and safety space can be instituted across the particular location. Due to these security measures, the chance of contaminated meat coming into the human meals provide is low.
In Abstract
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Unsure: Feed a cooked weight loss program. In case you are presently feeding a industrial uncooked weight loss program, inquire with the model if it may be cooked.
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If, regardless of the dangers, you select to proceed feeding a uncooked weight loss program, fastidiously supply your meat from USDA-inspected services and keep away from poultry meat. Stay away from industrial uncooked diets, significantly people who can not assure the origin of their meat.
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Monitor the state of affairs and the way it evolves in your area.
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Due to the Northwest Naturals case, it’s unclear if HPP is a ample security course of towards the avian flu.
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Don’t panic: Contamination of cats stays uncommon regardless of the avian flu being current for many years.
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Hold your cats indoors in areas the place the epidemic is current in wild birds.
I’ll replace this text sooner or later relying on the information relating to the state of affairs with the avian flu.
Helpful Hyperlinks
Maps of Outbreaks:
Outbreak in dairy cattle by state: USDA APHIS Livestock Cases
Outbreak in poultry flocks by state: USDA APHIS Flocks Cases
Outbreak in poultry flocks by county: USDA Reported H5N1 Bird Flu Detections in Poultry
Outbreak in wild birds by county: USDA Reported H5N1 Bird Flu Detections in Wild Birds
Sources
Uncooked Milk Recollects and Cat Instances:
Raw Milk and Cats Case Details
California Department of Food and Agriculture: Raw Milk Recall
Raw Farm, LLC Recall Information
Raw Farm, LLC Additional Recall Information
Northwest Naturals Recall:
Oregon Department of Agriculture: Recall Information
Beef Security:
USDA on H5N1 Beef Safety Studies
APHIS H5N1 and Safety of U.S. Meat Supply
Nationwide Milk Testing Technique:
USDA Milk Testing Strategy Details
Rooster Security:
Cheese and Yogurt Security:
Freezing and Virus Survival:
France Instances and standing updates:
Cat Infected with Avian Influenza in France – ANSES
Study on Avian Influenza in Cats – PMC
France Declares High Risk of Avian Influenza – Finistère Government
France Regains Avian Influenza-Free Status
Avian Influenza Situation in France – Ministry of Agriculture
Milk Pasteurization
Cow’s milk and H5N1 – heat inactivation
Inactivation of H5N1 in raw milk at 63°C and 72°C
Does pasteurization inactivate H5N1 in milk?
HPP
High pressure inactivation of selected avian viral pathogens
Inactivation of Avian Influenza Virus by Heat and High Hydrostatic Pressure
Freeze-Drying
Stabilization of Viruses via Freeze-Drying
Case in Swine:
First H5N1 Detections in Swine
Case in Thailand 2004:
Avian Influenza A(H5N1) in Thailand Cats
Case in Nebraska:
Avian Influenza Case in Cats – Nebraska
Case in South Dakota:
HPAI Research – South Dakota
Mortality Charge:
Avian Influenza Virus Infections in Felines: A Systematic Review of Two Decades of Literature
Poland Case Research:
Case Study on H5N1 in Cats – Poland
CDC Spotlight on Polish Domestic Cats
Poland: Influenza A(H5N1) in Cats
Outbreak Report – Poland, June to July 2023
H5N1 Transmission Routes in Domestic Cats – Poland, June 2023
Instances in Kansas and Texas:
Avian Influenza in Cats – Kansas and Texas
Instances in Korea:
Pet Food Tainted with H5N1 – Korea 2023
Research on Korea H5N1 Cases
Nature Article on Korea H5N1
Australia:
Avian influenza (bird flu) – DAFF
Chance to Attain Human Consumption
Risk Assessment of Avian Influenza in Food Products
Food Safety and Avian Influenza
FSIS Executive Summary on Avian Influenza Risk
HPAI and Cats with Avian Flu
H5N1 Virus Infection in Companion Animals – PMC
Transmission of Avian Influenza via Raw Poultry Meat and Eggs – PMC