What was recalled
This page synthesizes the H5N1 cross-species transmission framework around commercial pet food. The H5N1 highly-pathogenic avian influenza (HPAI) virus is an Influenza A virus of the subtype H5N1 with multiple genetic clades. The currently-circulating clade 2.3.4.4b emerged in 2020-2021 and has produced the largest sustained avian influenza outbreak in US history beginning in late 2021 and continuing through 2024. The outbreak has affected commercial poultry across multiple states (with approximately 90+ million birds depopulated cumulatively through USDA-APHIS depopulation policy), wild bird populations broadly (with mass mortality events in seabirds, raptors, waterfowl, and shorebirds), and — in a novel cross-species transmission event documented in March 2024 — US dairy cattle.
The dairy cattle transmission event was first detected in March 2024 in Texas dairy cattle, with rapid spread to multiple states through cattle movement, milk handling, and shared equipment. The USDA-APHIS confirmed dairy cattle as a novel H5N1 host species, with the dairy version of the virus showing genetic adaptations including mutations in the polymerase basic 2 (PB2) gene associated with mammalian adaptation. Dairy worker H5N1 infections have been documented through milk and milking equipment exposure, with conjunctivitis as the dominant clinical presentation in worker cases. Indoor pet cats consuming raw milk from H5N1-affected dairy farms have developed severe H5N1 disease with high mortality — documented cases in Texas and Idaho cat populations through 2024.
The raw pet food transmission framework has produced multiple confirmed recall events through 2024-2025. Northwest Naturals raw cat food (December 2024) — recall after Oregon cat death; H5N1 confirmed in feed source via Oregon Department of Agriculture testing of remaining product. Wild Coast Raw (2024) — recall after confirmed H5N1 in remaining product. Monarch Raw (2024) — recall after H5N1 testing confirmation. RAWR (2025) — recall after H5N1 testing confirmation. Savage Cat Food (2025) — recall after H5N1 testing confirmation. The framework illustrates that raw pet food formulations using H5N1-affected poultry sources do not have a kill-step adequate to inactivate the virus, and the feline immune response to H5N1 is severe with high case-fatality rate. The framework parallels the broader concern about pathogen control in raw pet food (Salmonella, Listeria, E. coli, Campylobacter) but with H5N1 representing a uniquely concerning zoonotic transmission risk through the feline host pathway.
Why it was recalled
The structural concerns have three layers. Layer one — H5N1 retains pathogenicity through frozen raw production: raw pet food production typically involves grinding, mixing, portioning, and frozen storage of muscle meat and organ ingredients without a heat kill-step that would inactivate viruses. The H5N1 virus is sensitive to heat (60°C for 30 seconds typically inactivates the virus in muscle tissue) but stable in frozen storage and through standard raw pet food processing. The framework is structurally different from commercial heated pet food (kibble, canned, retort-processed) where the heat processing inactivates the virus reliably. Pet food brands using H5N1-affected poultry sources cannot reliably remove H5N1 risk from raw formulations through processing alone, requiring source-level supply chain control (avoiding affected poultry sources) or post-processing inactivation (HPP, irradiation, freeze-drying with appropriate temperature parameters).
Layer two — feline H5N1 disease is severe with high mortality: the feline immune response to H5N1 produces severe clinical disease characterized by neurological signs (ataxia, tremors, seizures), respiratory distress, fever, and rapid clinical decline. Case-fatality rate in confirmed feline H5N1 cases approaches 50-90% in published case series, with rapid clinical progression from symptom onset to death (typically 48-96 hours). The severity reflects feline-specific virology — cats have abundant sialic acid receptors with the avian-preferred binding configuration in respiratory and neurological tissues, producing high viral replication in target organs. Dogs appear less susceptible than cats to H5N1 severe disease (lower receptor density, milder clinical course in documented exposure events), but raw dog food using H5N1-affected sources still carries some transmission risk.
Layer three — cross-species transmission framework extends to humans: documented H5N1 transmission to humans through dairy worker exposure (multiple confirmed cases in Texas, Colorado, Michigan, others through 2024), and through cat-to-human transmission in households with infected cats has been reported as a theoretical concern though direct cat-to-human transmission remains undocumented in published case series as of late 2024. The framework places raw pet food at the intersection of pet health, human zoonotic exposure, and broader public health pandemic preparedness. USDA-FSIS issued mandatory testing requirements for dairy cattle moving across state lines in April 2024 to control the dairy outbreak; equivalent regulatory framework for raw pet food poultry sourcing has not been issued as of late 2024 despite multiple recall events.
Health risks for your pet
H5N1 cross-species transmission through raw pet food produces severe pet health risks with high mortality, particularly for cats. Feline H5N1 clinical disease is characterized by: (i) neurological signs — ataxia, tremors, head tilt, seizures, altered mentation reflecting CNS invasion; (ii) respiratory distress — tachypnea, dyspnea, increased respiratory effort reflecting pulmonary involvement; (iii) fever often present early in clinical course; (iv) rapid clinical progression from symptom onset to death typically 48-96 hours. Case-fatality rate in confirmed feline H5N1 cases is high (50-90% in published case series), with limited specific treatment options — supportive care (IV fluids, oxygen supplementation, anti-seizure medication, antiviral consideration on case-specific basis) is the dominant intervention with poor prognosis for cats already showing severe clinical signs.
Dog H5N1 disease appears less severe than feline disease based on documented exposure events. Dogs may show milder respiratory signs, fever, and reduced appetite with most cases recovering with supportive care. The lower severity reflects canine receptor distribution (fewer avian-preferred sialic acid receptors in respiratory and neurological tissues than cats). Raw dog food using H5N1-affected poultry sources still carries some transmission risk to the dog and represents a household zoonotic exposure pathway. Human H5N1 exposure through pet food is theoretically possible through contact with contaminated raw pet food during handling, or through contact with an infected pet shedding virus, but documented human cases through this pathway are absent as of late 2024 (most documented human cases have been through dairy worker occupational exposure).
What to do if you bought affected product
Pet owners can reduce H5N1 transmission risk through several practical approaches: (1) during active H5N1 outbreak periods, prefer commercially heat-processed pet food (kibble, canned, retort-processed) over raw or freeze-dried formulations for poultry-source ingredients — heat processing reliably inactivates the H5N1 virus, raw and freeze-dried processing typically do not; (2) if you feed raw pet food, verify the brand's H5N1 testing and source control program — brands with active testing programs and supplier biosecurity audits provide more assurance than brands with marketing claims only; (3) watch the FDA-CVM Reportable Food Registry and Pet Food Industry trade press for active H5N1 recall events — multiple raw pet food brands have been recalled in 2024-2025 for H5N1 contamination; (4) during active outbreaks, consider avoiding raw poultry-source pet food entirely — the source control is supply-chain-dependent and consumer-side verification is limited; (5) for cats with confirmed H5N1 exposure (consumed recalled product or exposed to infected animal), monitor for clinical signs and seek veterinary care promptly if neurological, respiratory, or febrile signs develop — clinical progression is rapid and early intervention is the best opportunity for supportive care; (6) practice routine pet food handling biosecurity — wash hands after handling raw pet food, separate raw pet food from human food preparation areas, avoid contact between raw pet food and household food surfaces; (7) discuss raw pet food choices with your veterinarian during outbreak periods — veterinary guidance on risk-benefit analysis for your specific pet and household is the strongest decision input; (8) reference our raw pet food H5N1 controversy and kibble retort kill-step framework pages for complementary regulatory and processing-pathway context.
How this affects KibbleIQ’s grade
The KibbleIQ rubric v15 does not currently include H5N1-specific risk scoring per our published methodology, since active outbreak conditions are temporally bounded and the recall-history scoring extension is on the roadmap for future rubric updates. The rubric implicitly disadvantages raw pet food through the dry rubric structure (the rubric scores dry kibble and applies cross-format overlays for raw/freeze-dried with appropriate framework). Brand-specific recall events tied to H5N1 transmission (Northwest Naturals, Wild Coast, Monarch, RAWR, Savage) are noted in brand review prose where applicable but do not currently produce numerical rubric deduction. The broader H5N1 pet food framework is covered across our raw pet food H5N1 controversy, kibble retort kill-step framework, and the per-brand recall pages (Northwest Naturals, Wild Coast, Monarch, RAWR, Savage). For now, our recommendation: during active H5N1 outbreak periods, prefer heat-processed pet food formats for poultry-source ingredients, monitor FDA-CVM recall activity, and discuss raw pet food choices with your veterinarian for risk-informed decision-making.