Full Breakdown
Raccoon Roundworm Infection Reported in Los Angeles Dog
3/4/2026, 10:15:25 PM
Discovery of Raccoon Roundworm in a Pet
In January 2024, a Woodland Hills family discovered that their dog, Ducky, had been infected with raccoon roundworm, a brain-infecting parasite. Christian Lopez, Ducky's owner, took her for a routine veterinary examination, during which Baylisascaris eggs were detected. This incident marks the first formal report of raccoon roundworm in a dog in Los Angeles County, according to the Department of Public Health. Dr. Julio Lopez, the veterinarian who treated Ducky, noted that he had never encountered such a case in his career. He emphasized the potential severity of untreated infections, which can lead to conditions such as blindness or seizures in pets.
Transmission and Risks
Raccoon roundworm is primarily transmitted when pets or humans ingest food or water contaminated with raccoon feces. Public Health officials indicated that the risk to the general population remains extremely low, with fewer than ten human cases reported in California since 1993. However, in 2024, two children in the South Bay were infected with the parasite, believed to have occurred through direct contact with raccoon feces. Dr. Dawn Terashita, associate director of Acute Communicable Disease Control at the LA County Department of Public Health, stated that children who tend to put objects in their mouths are at higher risk.
Health Implications
If left untreated, raccoon roundworm can lead to severe health complications in humans, including brain damage and death. Fortunately, both children who contracted the infection recovered with treatment. Dr. Terashita clarified that raccoon roundworm is often confused with ringworm, which is a fungal infection, whereas roundworm is an actual parasitic worm.
Preventive Measures
To mitigate the risk of raccoon roundworm infections, health officials recommend several preventive measures. These include:
- Picking up after pets in yards
- Clearing the yard of other animal feces
- Safely removing raccoon latrines
- Keeping outdoor trash bins secured
- Not leaving food out for pets in yards
- Trimming trees to prevent raccoons from accessing roofs
- Ensuring children wash their hands after playing outside
- Wearing gloves while gardening
- Covering sandboxes and water sources when not in use
The U.S. Centers for Disease Control and Prevention (CDC) notes that raccoon roundworm eggs can take 2 to 4 weeks to become infectious, making timely cleanup essential. Most household cleaning products are ineffective against these eggs, but heat or boiling water can eliminate them.
Official Statements & Responses
Dr. Julio Lopez highlighted the importance of preventive care, stating, "I know it's going to be expensive, but it'll be a lot more expensive later if you catch something too late." The Lopez family, who adopted Ducky from a family friend, took her to the vet for preventive care, underscoring the significance of regular veterinary check-ups.
Criticism & Opposition
Despite the low risk to the general population, some experts argue that public awareness about raccoon roundworm should be heightened, especially in areas where raccoons are prevalent. They emphasize the need for community education on the importance of pet hygiene and environmental cleanliness to prevent potential infections.
Verbatim Quotes
“Never seen a case like this.” — Dr. Julio Lopez, Veterinarian
“Any child or human who has a tendency to put things into their mouth is what we consider high risk,” — Dr. Dawn Terashita, LA County Department of Public Health
“Toddlers put everything in their mouth and some humans, especially adults and even older kids, have a disease called 'pica,' where they put non-food items into their mouth.” — Dr. Dawn Terashita, LA County Department of Public Health
“I know it's going to be expensive, but it'll be a lot more expensive later if you catch something too late,” — Christian Lopez, Dog Owner
