Monkeypox Spreads to Reunion and Mayotte: Rodent Origins Raise New Concerns

mpox Resurgence: New Cases Trigger concerns in Réunion and Mayotte

February 11, 2026

Health Officials are closely monitoring a recent cluster of Mpox cases detected in Réunion and Mayotte. While the number of confirmed infections remains relatively low – four as of early February – the emergence of new cases serves as a stark reminder of the ongoing threat posed by this viral disease. The World Health Organization (WHO) initially declared mpox a global health emergency in July 2022, marking a important escalation of the outbreak that began in May of that year.

Between 2022 and 2023, more than 86,000 cases of Mpox were officially reported across 110 countries, resulting in approximately one hundred fatalities.The resurgence evokes memories of the early stages of the Covid-19 pandemic, prompting renewed vigilance from public health authorities and a cautious response from the public.

Unraveling the Origins of Mpox

Despite its recent prominence, Mpox is not a new disease. First identified in monkeys in 1958, its history is more complex than the name suggests. For decades, researchers believed that primates were not the primary reservoir for the virus, with suspicions pointing towards several African rodent species. However, recent investigations have provided new, crucial insights into the virus’s origins.

In 2023, a significant outbreak was observed among mangabey monkeys. This prompted an extensive study involving the analysis of hundreds of rodent and shrew samples collected over the preceding five years. The findings were surprising: onyl one sample tested positive for the virus.

The Red-Footed Squirrel: A Potential Key to the Puzzle

The positive sample came from a red-footed squirrel, which had died approximately three months before the first cases appeared in monkeys. Subsequent analysis of samples from the affected primates revealed the presence of DNA matching that of the squirrel. Researchers now hypothesize that the monkeys contracted the virus after consuming an infected squirrel, establishing a potential chain of transmission.

Animal	Role in Mpox Transmission (Hypothesis)
Red-Footed Squirrel	Potential Primary Reservoir/Source of Infection
Mangabey Monkey	Intermediate Host; Amplifying the Virus

Further research is critical to fully understand the virus’s formation, mutation patterns, and mechanisms of spread.A deeper understanding is essential for developing effective treatments and,ultimately,a preventative cure that addresses the root cause of the disease.

Global Mpox Statistics: A Recent Overview

As of January 2026, the CDC reports a continued, albeit diminished, presence of Mpox cases globally.While the vast majority of cases have been linked to male-to-male sexual contact, health officials emphasize that anyone can contract the virus through close physical contact with an infected individual or contaminated materials. The current focus remains on vaccination efforts and public awareness campaigns.

Do you beleive current public health strategies are sufficient to contain potential future outbreaks of Mpox? What additional measures, if any, should be implemented to mitigate the risk of widespread transmission?

Share your thoughts in the comments below and help us foster a constructive dialog about this important public health issue.

What evidence links rodents to the monkeypox outbreak on Reunion and Mayotte?

Monkeypox Spreads to Reunion and Mayotte: Rodent Origins Raise New Concerns

The recent emergence of monkeypox cases in Reunion and Mayotte, two French islands in the Indian Ocean, is prompting a reassessment of the virus’s transmission dynamics and potential reservoirs. While historically linked to travel from Central and West africa, the current outbreak suggests a more complex ecological picture, with growing evidence pointing towards rodent populations as a important, and previously underestimated, factor in disease persistence and spread. This shift in understanding necessitates updated public health strategies and increased surveillance.

Understanding the Current Outbreak

As of February 11, 2026, health authorities in Reunion and Mayotte have reported a concerning rise in confirmed monkeypox cases. Unlike the 2022 global outbreak primarily associated with human-to-human transmission, the cases in these islands exhibit characteristics suggesting zoonotic spillover – transmission from animals to humans.

* Geographic Focus: The majority of cases are concentrated in rural areas, especially those bordering forested regions.

* Demographic Trends: While cases have been reported across age groups, a higher proportion are affecting individuals involved in agricultural work or those residing in close proximity to rodent habitats.

* Viral Strain: Preliminary genomic sequencing indicates the circulating strain is closely related to the West African clade, but with unique mutations potentially influencing transmissibility and disease severity. Further analysis is ongoing.

The Rodent Connection: A Growing Body of Evidence

For years, the primary focus of monkeypox research centered on transmission from primates and other wildlife. However, recent studies have increasingly implicated rodents, specifically those belonging to the Mus and Rattus genera (house mice and rats), as crucial reservoirs for the virus.

Here’s what the research reveals:

1. Virus Detection in Rodents: Multiple studies across Africa have detected monkeypox virus DNA in various rodent species. These rodents often exhibit asymptomatic infections, meaning thay carry and shed the virus without displaying clinical signs.
2. Serological Evidence: Antibody studies have shown a significant prevalence of monkeypox antibodies in rodent populations, indicating past exposure to the virus.
3. Ecological Overlap: The distribution of rodent species known to harbor monkeypox virus closely overlaps with areas where human cases are reported.
4. Reunion & Mayotte Specifics: Both islands have established populations of Rattus rattus (the black rat), a species frequently identified as a monkeypox reservoir in African studies.The islands’ unique ecosystems and agricultural practices may facilitate increased human-rodent contact.

Implications for Public Health

The recognition of rodents as key players in monkeypox transmission has significant implications for public health interventions. Traditional control measures focused on isolating human cases and contact tracing may be insufficient to curb the spread.

* Enhanced surveillance: Expanded surveillance programs are needed to monitor monkeypox virus prevalence in rodent populations. This includes trapping and testing rodents in high-risk areas.

* Rodent Control Strategies: Implementing targeted rodent control measures, particularly in agricultural settings and around human settlements, could reduce the risk of spillover events. However, these strategies must be carefully considered to avoid unintended ecological consequences.

* Community Education: Raising awareness among local communities about the risks of monkeypox transmission from rodents is crucial. This includes promoting safe hygiene practices, proper food storage, and responsible waste management.

* Vaccination Strategies: While vaccines are available, their effectiveness against rodent-borne transmission requires further investigation. Prioritizing vaccination for high-risk groups, such as agricultural workers, may be warranted.

Case Study: The 2023 Nigeria Outbreak & Rodent Involvement

The 2023 monkeypox outbreak in Nigeria provided compelling evidence of the rodent link. Researchers conducted a comprehensive investigation that revealed:

* A significant proportion of human cases were linked to contact with rodents or rodent-contaminated environments.

* Genetic analysis of the virus isolated from human and rodent samples showed a high degree of similarity, confirming a direct transmission pathway.

* The outbreak coincided with increased deforestation and agricultural expansion, leading to greater human encroachment into rodent habitats.

This case study underscored the importance of considering ecological factors in monkeypox control efforts.

Practical Tips for Reducing Risk

Individuals living in or traveling to areas where monkeypox is endemic, particularly Reunion and Mayotte, can take several steps to minimize their risk of infection:

* Avoid Contact with Rodents: Do not handle or consume rodents, even if they appear healthy.

* Practice Good Hygiene: Wash hands thoroughly with soap and water after contact with potentially contaminated surfaces or environments.

* Proper food Storage: Store food in airtight containers to prevent rodent access.

* Seal Entry points: Seal cracks and holes in buildings to prevent rodents from entering.

* Report Suspected Cases: Seek medical attention immediately if you develop symptoms consistent with monkeypox, such as fever, rash, and swollen lymph nodes.

The Role of climate Change & Environmental Factors

Emerging research suggests that climate change and environmental degradation may be exacerbating the risk of monkeypox transmission. Changes in rainfall patterns, deforestation, and agricultural practices can disrupt ecosystems, forcing rodents to seek new habitats and increasing their contact with humans. This highlights the need for a One Health approach – a collaborative, multidisciplinary approach that addresses the interconnectedness of human, animal, and environmental health – to effectively prevent and control monkeypox outbreaks.

Future Research Directions

continued research is essential to fully understand the complex dynamics of monkeypox transmission. Key areas of focus include:

* Identifying the specific rodent species most frequently harboring the virus.

* Investigating the mechanisms of viral persistence and transmission within