๐ฆ Rabies ยท Traveling Zoo ยท NC 2026 ยท Swiss Cheese Model
A Traveling Zoo Had Rabies.
Six Safety Layers Failed.
Harmony, Iredell County, North Carolina. Young unvaccinated goats. A wild opossum. Burned before testing. Public exhibitions during the incubation period. No contact tracing. Dr. Alberto applies the Swiss cheese model to explain exactly how this happened โ and what post-exposure prophylaxis can still do.
By Dr. Alberto, MD | Infectious Disease Specialist | 2026 | Sources: CDC ยท WHO ยท Published literature
What Happened
A traveling zoo based out of Harmony, in Iredell County, North Carolina, brought animals โ including a collection of young goats and other livestock โ to exhibitions across multiple locations. At the end of July 2026, an opossum managed to get into the corral where the goats were kept.
The caretakers noticed the opossum. They did not check whether it had bitten the goats. They killed it โ and then burned it, leaving no carcass, no possibility of laboratory testing, no way to ever confirm whether the animal had rabies.
The goats were subsequently taken to public exhibitions. People had prolonged, close, direct contact with them. No pre-event health assessment had been conducted. No supervision of human-animal contact was in place at the events.
Weeks later, the goats began dying. Tests were run. The diagnosis: rabies. The public had already been exposed โ and no one had a record of who.
The Swiss Cheese Model โ James Reason
To understand how this happened, Dr. Alberto applies the Swiss cheese model โ a framework developed by psychologist James Reason to explain how accidents occur not through a single catastrophic failure, but through the simultaneous failure of multiple independent safety layers.
๐ง The model explained
Imagine each safety barrier as a slice of Swiss cheese. Every slice has holes โ gaps, imperfections in the system. Normally, the holes don’t align. A risk factor might get through one layer, but the next one catches it. The accident happens only when the holes in all the layers line up simultaneously โ when the risk travels straight through every defense at once. That is what happened in North Carolina.
The 6 Failed Layers
Layer 1
No rabies vaccination โ age-based gap
The goats were less than three months old. At this age, maternal antibodies interfere with the vaccine response, making rabies vaccination unreliable. This was not negligence โ it was a biological constraint. But it left the animals with no protection, and that gap was the first hole in the cheese.
Layer 2
Opossum enters the corral โ isolation failure
The corral was meant to keep wild animals out. An opossum โ a wild animal and a potential rabies vector โ got in anyway. The physical barrier, the first active safety layer, failed.
Layer 3
No bite detection โ documentation failure
When the caretakers found the opossum in the corral, they did not check the goats for bite wounds. They did not document the incident, isolate the animals, or report it through any health protocol. The opportunity to catch the exposure โ and respond to it โ was missed entirely.
Layer 4
Opossum killed and burned โ evidence destroyed
The caretakers killed the opossum โ and then burned it. This single decision eliminated any possibility of laboratory testing. No carcass, no sample, no result. Whether the opossum actually had rabies could never be confirmed. Every subsequent decision โ about prophylaxis, about risk level, about public notification โ had to be made in the absence of that information.
Layer 5
No pre-event health assessment โ checklist failure
Before any public exhibition with animals, a standard health assessment should be conducted: vaccination status verified, animals examined, any recent health incidents documented. None of this happened. The goats were taken to public events during what could still have been the rabies incubation period โ with no prior evaluation of their health status.
Layer 6
No contact tracing โ surveillance failure
At the exhibitions, there was no supervision of direct contact between animals and the public. No records were kept of who interacted with the animals, for how long, or in what manner. When rabies was confirmed weeks later, reconstructing who had been exposed required a desperate, incomplete scramble โ calling everyone they could remember, with no systematic record to work from.
Rabies โ What Dr. Alberto Knows From Experience
Dr. Alberto has managed multiple cases of possible rabies exposure in Brazil โ mostly linked to street dogs or neighbor’s dogs. The protocol he follows, and teaches, is clear on one critical point: do not kill the biting animal.
๐พ The observation protocol
The biting animal should be kept under close observation for a defined period. If the animal remains healthy throughout that period, post-exposure prophylaxis for the human can safely be stopped โ the animal was not rabid. If the animal dies or tests positive, the full prophylaxis course must be completed.
When the caretakers burned the opossum, they eliminated this protocol entirely. There was no animal to observe, no result to guide clinical decisions. Every exposed person had to complete full prophylaxis โ with no option to stop early, because the one mechanism that would have allowed that was gone.
โฑ๏ธ Incubation โ up to one year
Rabies has an average incubation period of one to three months. But documented cases exist with incubation periods of up to one year. Dr. Alberto personally saw a soldier in an Amazon ICU who developed rabies one year after the exposure event. This means that even at the time of filming โ weeks after the opossum incident โ the window for disease development in the exposed goats was not closed.
Post-Exposure Prophylaxis โ The Last Line of Defense
As of filming, all exposed humans remained healthy. Post-exposure prophylaxis was working. This is the good news โ and it is real. PEP can stop rabies from developing, even after exposure, if administered quickly enough before the virus reaches the nervous system.
Vaccine series
Multiple doses over a defined schedule. For previously unvaccinated individuals, typically 4 doses over 14 days.
Human rabies immunoglobulin (HRIG)
For unvaccinated patients only โ infiltrated at the wound site to provide immediate passive immunity while the vaccine response develops.
Start as soon as possible
PEP is most effective when started promptly. The longer the delay, the further the virus can travel toward the central nervous system.
Can be stopped early if...
The biting animal is observed and remains healthy. This option was eliminated in this case when the opossum was burned.
๐ฌ Dr. Alberto's message
“Exposure to rabies is often unintentional. No one intended for this to happen. But you must take all the precautions — so that the safety layers are in place before the event, not scrambled into place after. Vaccinate your animals when they are old enough. Keep wild animals out. Do not destroy the evidence. Conduct a health assessment before any public exhibition. And if exposure happens — get to post-exposure prophylaxis as quickly as possible.”
A
Dr. Alberto
Physician and infectious disease specialist. Founder of No Infection Consulting & Education and the YouTube channel Infectious Diseases in Focus.
Medical Disclaimer: This article is for educational and informational purposes only. If you believe you have been exposed to a rabies-risk animal, contact your healthcare provider or local public health department immediately for evaluation and post-exposure prophylaxis.