CDC Warns of Drug-Resistant Salmonella Outbreak Linked to Backyard Poultry, Mostly Affecting Children

May 1, 2026

The U.S. Centers for Disease Control and Prevention (CDC) is currently investigating a multistate outbreak of Salmonella Saintpaul infections that has sickened at least 34 people across 13 states. Epidemiologic and laboratory data point strongly to backyard poultry—specifically chickens and ducks—as the likely source of the illness. Of particular concern to health officials is the demographic and clinical profile of the outbreak: nearly half of the patients are children under the age of five, and the bacterial strain is showing resistance to several key antibiotics, including fosfomycin, a drug often reserved for difficult-to-treat infections.

Key Findings of the Outbreak

As of late April 2026, the CDC has confirmed 34 cases of Salmonella Saintpaul across a broad geographic range, including Michigan, Ohio, Wisconsin, Kentucky, Maryland, Maine, and Tennessee. While the first reported illness dates back to February 26, the investigation remains active as new cases continue to emerge.

The clinical severity of this particular strain is noteworthy. Of the 27 patients for whom complete clinical data is available, 13 (approximately 48%) required hospitalization. While no deaths have been reported to date, the CDC cautions that the documented count of 34 is likely “the tip of the iceberg.” Many individuals recover from salmonellosis without seeking medical care or being tested, meaning the true scope of the transmission is likely much larger.

Whole-genome sequencing (WGS) has played a pivotal role in this investigation. By analyzing the DNA of the bacteria, scientists confirmed that the samples from all 34 patients are genetically nearly identical, pointing to a common source of infection. Alarmingly, WGS also predicted that the bacteria are resistant to fosfomycin. In a subset of eight patients, the strain showed additional resistance to:

• Chloramphenicol

• Streptomycin

• Sulfisoxazole

• Tetracycline

The Link to Backyard Poultry

The connection to home-raised birds is well-supported by patient interviews. Of the 29 sick individuals interviewed by health officials, 23 (79%) reported direct contact with backyard poultry in the week before they fell ill. This evidence was bolstered by environmental testing in Ohio, where investigators detected the identical outbreak strain of Salmonella Saintpaul in samples taken directly from backyard birds.

Children are bearing a disproportionate burden in this outbreak. The median age of patients is just 12 years, and 41% of cases involve children under the age of five. This demographic is particularly vulnerable because young children are more likely to touch their mouths or food after handling birds or contaminated surfaces.

“Children under five should not handle chicks, ducklings, or any objects in the birds’ environment,” the CDC stated in its recent update. The agency emphasizes that even birds that look healthy and clean can carry Salmonella in their droppings and on their feathers.

Why Drug Resistance Changes the Clinical Picture

Most Salmonella infections result in “typical” food poisoning symptoms—diarrhea, fever, and stomach cramps—and resolve with rest and fluids. However, when the bacteria enter the bloodstream or cause severe dehydration, antibiotics become necessary.

“Drug-resistant Salmonella changes the risk equation,” explains Dr. Elena Ramirez, an infectious-disease specialist not involved in the CDC investigation. “In a child with severe diarrhea, the inability to rely on a broader antibiotic arsenal can prolong illness, increase the need for intensive care, and raise the risk of long-term complications.”

Fosfomycin is frequently considered a “salvage” antibiotic, used when first-line treatments fail. Resistance to this and other common drugs like tetracycline narrows the “window of opportunity” for doctors to effectively halt the infection, especially in immunocompromised patients.

Historical Context and Public Health Risks

This is not an isolated event. In 2025, a massive Salmonella outbreak linked to backyard poultry affected over 500 people across 48 states, resulting in 125 hospitalizations. These recurring cycles suggest that as the popularity of “urban farming” and backyard coops grows, so does the public health risk if strict hygiene protocols are not followed.

Public health experts note that Salmonella can contaminate almost anything in the birds’ environment: coop surfaces, waterers, eggshells, and even the soil or grass where the birds roam. The bacteria are shed in the feces and can persist in the environment for weeks.

Practical Advice for Families and Flock Owners

For those who keep backyard poultry, the CDC and veterinary experts recommend a rigorous approach to hygiene to prevent transmission:

• Supervise Children: Ensure children under 5 do not handle poultry. Supervise older children to ensure they do not “kiss” birds or touch their faces while in the coop.

• Hand Hygiene: Wash hands with soap and water immediately after touching birds, eggs, or coop equipment. Do not rely solely on hand sanitizer if hands are visibly soiled.

• Dedicated Footwear: Wear specific shoes or boots when tending to the flock and leave them outside the home to avoid tracking bacteria indoors.

• Safe Egg Handling: Clean eggs with a brush or cloth; do not wash them with cold water, which can pull bacteria into the egg. Cook eggs until both yolks and whites are firm.

• Kitchen Separation: Never bring poultry-related items—such as feed bags or waterers—into the kitchen or areas where human food is prepared.

Limitations and the Road Ahead

While the resistance markers are concerning, health officials remind the public that many Salmonella infections are self-limiting. Furthermore, because the current data is based on laboratory-confirmed cases, it may be skewed toward more severe infections that required a doctor’s visit, potentially overestimating the average severity of the strain for the general population.

The focus now shifts to “traceback” efforts. Health departments and the National Antimicrobial Resistance Monitoring System (NARMS) are working to identify whether these resistant birds originated from a common hatchery or supplier. Identifying the source at the production level is critical to stopping the current spread and preventing future drug-resistant clusters.

Medical Disclaimer

This article is for informational purposes only and should not be considered medical advice. Always consult with qualified healthcare professionals before making any health-related decisions or changes to your treatment plan. The information presented here is based on current research and expert opinions, which may evolve as new evidence emerges.

References

• https://theconversation.com/eleven-types-of-cancer-are-on-the-rise-in-englands-under-50s-these-factors-might-explain-the-trend-281791