Health officials in Réunion, a French island in the Indian Ocean, are monitoring a small but concerning rise in cases of mpox, formerly known as monkeypox. As of Wednesday, February 25, 2026, the island has confirmed six cases of the viral illness since the beginning of the year, with two new cases identified in the past few days. This uptick comes as mpox continues to circulate in other parts of the world, particularly in regions of Africa and, more recently, Madagascar.
The Réunion Regional Health Agency (ARS) confirmed the latest cases in a press release, noting that the sixth case presents a challenge for epidemiologists as it has no known link to recent travel to areas where mpox is actively circulating, nor is there an established epidemiological connection to the previously identified cases on the island. This suggests the possibility of local transmission, prompting increased vigilance and public health measures.
Mpox is a viral infection that can cause a distinctive rash, often appearing on the face, hands, feet, and genitals. The rash can spread to other parts of the body and mucous membranes, and is frequently accompanied by fever, headache, muscle aches, and swollen lymph nodes. Individuals are considered contagious from the onset of symptoms until all lesions have fully healed, a period that can last for several weeks.
Transmission and Prevention
The primary mode of transmission for mpox is through close contact with an infected person or with materials contaminated by the virus, such as clothing, bedding, or shared utensils. Sexual contact has also been identified as a significant route of transmission, even when condoms are used. While transmission via respiratory droplets is considered less common, it can occur with prolonged, face-to-face contact without protective measures like masks.
In response to the increased risk, the ARS La Réunion launched a preventative vaccination campaign on February 9th, targeting populations considered most at risk. This includes travelers planning to visit areas with active mpox circulation, individuals with multiple sexual partners, sex workers, healthcare professionals potentially exposed to the virus, and people with weakened immune systems. Vaccinations are available by appointment at three centers on the island: the international vaccination centers at the CHU Nord and Sud hospitals, and the CEGIDD Ouest facility.
The vaccination schedule involves two doses administered four weeks apart, with full protection considered to be achieved two weeks after the second injection. Individuals previously vaccinated against smallpox in childhood require only one dose of the mpox vaccine.
Understanding the Current Situation
The recent cases in Réunion are occurring against a backdrop of mpox activity in the broader Indian Ocean region, particularly in Madagascar. This regional circulation has prompted the ARS to proactively implement the vaccination campaign and enhance surveillance efforts. The agency is actively investigating the source of the sixth case to determine if it represents a new chain of transmission within the local community.
The ARS emphasizes that mpox is not typically a severe illness, but it can cause significant discomfort and requires isolation to prevent further spread. Individuals experiencing symptoms consistent with mpox are advised to seek medical attention immediately and to isolate themselves for three weeks to minimize the risk of transmission.
What to Expect Next
Health officials in Réunion will continue to monitor the situation closely, tracking new cases and assessing the effectiveness of the vaccination campaign. The ARS is expected to provide further updates on the evolving situation and any adjustments to public health recommendations in the coming weeks. Residents are encouraged to stay informed through official channels and to practice preventative measures, such as practicing good hygiene and avoiding close contact with individuals exhibiting symptoms.
The World Health Organization continues to monitor the global mpox situation and provide guidance to member states. More information about mpox, including symptoms, transmission, and prevention, can be found on the CDC website: https://www.cdc.gov/infection-control/hcp/isolation-precautions/appendix-a-type-duration.html.
Disclaimer: This article provides information for general knowledge and informational purposes only, and does not constitute medical advice. It is essential to consult with a qualified healthcare professional for any health concerns or before making any decisions related to your health or treatment.
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