On October 28, a truck from a laboratory transporting rhesus monkeys used in scientific experiments had an accident on Interstate I-59, in eastern Mississippi, causing the escape of several specimens and generating a health and community alert in Jasper County.
According to reports from USA Today and NBC News, at least three primates remain missing, while the authorities continue the active search.
Rhesus monkeys: aggressive behavior and biological risk
The monkeys involved in the incident were linked to the biomedical center of Tulane University, although the institution clarified that they were not responsible for the transport and that the specimens belong to another scientific entity.
The Jasper County sheriff warned that rhesus monkeys weigh about 18 kg, can exhibit aggressive behaviors, and require specialized protective equipment for handling.
“All necessary measures were taken upon receiving the information that they could carry hepatitis C, herpes, and COVID-19,” stated the police headquarters.
Interagency coordination and containment measures
After the accident, the Jasper Police Department, the Mississippi Wildlife and Fisheries Commission, and a specialized animal removal company intervened. During the confusion, several specimens were euthanized for safety reasons, and specific instructions were issued to the public to avoid direct contact with the fugitive animals.
Tulane University sent animal welfare experts to assist in the operation and reiterated that the primates were not infected nor posed a health risk, although the alert recommendation remains for local residents.

Crisis communication and institutional transparency
The sheriff’s office has used Facebook as the main channel to inform the public, detailing that the count conducted by Tulane representatives confirmed the escape of three specimens.
The tracking operation remains active and will continue until the complete securing of the animals and the proper handling of those still in custody.
“We are doing everything possible to keep the public informed, although we are still gathering data to fully clarify what happened,” they stated in their latest update.
Ethical implications and challenges in the transport of laboratory animals
This incident highlights the risks associated with the transport of animals used in research, especially when dealing with species with zoonotic potential and unpredictable behavior. It also raises questions about:
- Transport and road safety protocols
- Transparency in the scientific custody chain
- Community protection and public communication
- Animal welfare conditions in experimental contexts
The escape of monkeys in Mississippi not only triggered a tracking operation but also opened a debate on the ethical, health, and communication management of laboratory animals in transit.
In a context of growing social sensitivity towards research with primates, such incidents require interagency coordination, clear protocols, and transparent communication to protect both the population and the animals involved.



