CDC Warns of Multistate Salmonella Outbreak: Latest Investigation Update

Public health officials are investigating a multistate outbreak of Salmonella Woodinville infections linked to contact with pet veiled chameleons. According to the Centers for Disease Control and Prevention (CDC), every reported case in this outbreak has occurred in children aged two years old or younger.

As of May 4, 2026, the CDC has reported five children infected with the outbreak strain across four states. The onset of illnesses occurred between February 12, 2026, and April 10, 2026.

The severity of the infections has varied among the affected children. Two of the five reported cases, representing 40 percent of the total, required hospitalization. No deaths have been reported in connection with this outbreak.

Epidemiologic Findings and Investigation

Investigators are utilizing epidemiologic data to trace the source of the infections, which currently point toward pet veiled chameleons as the likely vehicle for the bacteria. The CDC and state health officials are collecting various data types from the sick children, including the specific animals they encountered in the week prior to the onset of symptoms.

Health officials caution that the reported number of cases may be lower than the actual number of infections. Many individuals recover from Salmonella without seeking medical care or receiving a laboratory test, meaning they are not captured in official outbreak statistics.

the CDC noted that recent illnesses may not yet be reflected in the data, as it typically takes three to four weeks to determine if a specific case of Salmonella is part of a larger multistate outbreak.

Public Health Context of Reptile-Borne Salmonella

The link between reptiles and Salmonella is a known public health concern. The CDC states that any reptile can carry Salmonella germs, which can then be transferred to humans through direct contact with the animal or its environment.

Children under the age of five are particularly vulnerable to Salmonella infections. This increased risk is often attributed to developing immune systems and a higher likelihood of hand-to-mouth contact after handling pets or cleaning animal habitats.

When Salmonella enters the body, it can cause gastroenteritis, characterized by symptoms such as diarrhea, fever, and abdominal cramps. While many people recover without specific treatment, the bacteria can enter the bloodstream or other parts of the body, leading to more severe systemic infections that require hospitalization and antibiotic therapy.

Prevention and Next Steps

The CDC emphasizes the importance of taking health precautions when keeping pet veiled chameleons or any other reptile. General safety guidelines for reptile owners include maintaining strict hygiene and limiting the exposure of very young children to these animals.

The investigation remains ongoing as the CDC and state health departments continue to collect and analyze data to further define the scope of the outbreak and identify any specific sources of the contaminated animals.