The Return of an Old Disease: What Mauritania’s Diphtheria Outbreak Means for Africa
In eastern Mauritania, near the border with Mali, an old and deadly disease is making a comeback. Between January 2025 and March 2026, a diphtheria outbreak took 56 lives and infected over 1,400 people. For African leaders and health workers, this is a clear warning. It shows exactly what happens when conflicts force people to flee their homes, causing thousands of children to miss their basic, life-saving vaccines.
Most of these illnesses happened around the Mbera refugee camp. This camp is a safe place for tens of thousands of people running from danger in Mali. However, living in crowded spaces with limited access to everyday healthcare makes it very easy for a disease like diphtheria to spread through a simple cough or sneeze.
Without quick treatment, the bacteria causes the throat to swell and makes it very hard to breathe. The human stories from the camp show how important it is to get medical help fast. When 22-year-old Zeinabou got a fever and throat pain, she went to the clinic immediately, which likely saved her life. Similarly, when a three-year-old girl named Salimata started struggling to breathe, her aunt Khadija rushed her to the camp’s health center. Salimata recovered after a week in a special ward where treatment was completely free.
Behind these recoveries, local doctors are working under huge pressure. Dr. Moussa Sacko, a doctor at the camp, shared that his team treated over 600 patients in just 15 months. With support from the World Health Organization (WHO) and the Mauritanian government, these clinics have worked hard to find the sick, provide essential medicines, and keep nurses and doctors safe.
Dr. Charlotte Ndiaye, the WHO Representative in Mauritania, points out the root of the problem: too many children have never received a single vaccine. This is a massive challenge for Africa. When fighting breaks out and borders become unsafe, normal health services stop working. The resulting outbreaks place a huge financial and emotional burden on countries that are already trying to help refugees.
Fortunately, there is a clear way to stop the spread. Recent efforts have shown that vaccines still work. A major health campaign in January 2026 successfully vaccinated over 23,000 people in the affected area, dropping new cases down to almost zero in some towns.
Moving forward, this outbreak teaches the continent an important lesson. Protecting public health in border regions requires more than just waiting for an emergency to happen. African governments need to invest in mobile health teams and better political cooperation across borders. Ensuring every child gets vaccinated is the only way to make sure the diseases of the past do not return to threaten Africa’s future.
