Frankfurt am Main's public health authority has issued a warning after recording two further cases of malaria, bringing the total to eight infections since July, two of which have been fatal. The new cases involve residents of the Schwanheim district, which lies directly adjacent to Frankfurt Airport, prompting an investigation into a possible link.
Recent infections have predominantly affected airport employees, leading health officials to suspect that mosquitoes from malaria-endemic regions are being transported on aircraft, surviving the journey, and then transmitting the disease when they bite. This phenomenon, known as "airport malaria," has been documented in Europe for decades.
Recognising the symptoms
Malaria is a tropical disease that can be treated effectively if diagnosed early. However, initial symptoms often resemble those of influenza or a common cold, making it easy to overlook. "It is therefore crucial to consider a possible malaria infection at an early stage when such symptoms occur," the city of Frankfurt am Main said in a statement.
Typical signs include fever, shivering, headaches, limb pain, and gastrointestinal complaints. The Robert Koch Institute (RKI) notes that these symptoms are frequently misinterpreted as a flu-like infection or a stomach and intestinal infection. While not all forms of malaria are fatal—such as malaria tertiana, quartana, or Plasmodium knowlesi—the most dangerous variant, malaria tropica, can be deadly without prompt diagnosis and treatment. The German Federal Foreign Office describes it as a life-threatening disease.
Malaria is not contagious from person to person; transmission requires the bite of an infected mosquito. When the disease is acquired outside endemic areas—because mosquitoes are carried along on flights—it is often referred to as airport malaria.
Advice for residents and travellers
Frankfurt's health authority recommends that anyone who works at or near the airport, spends time there, or lives in close proximity should consult a doctor if they develop an unexplained fever. During the consultation, it is important to mention their place of residence or any stay in the vicinity of the airport.
Residents of Frankfurt can also contact the public health authority's hotline at 069/212-30030, available from 9:00 to 18:00. Preventive measures include using insect repellents containing DEET or icaridin, wearing long clothing, and using insect nets, according to guidance from the Federal Foreign Office.
Airport malaria in Europe
Cases of airport malaria are rare in Germany, according to the RKI. A 2024 study found that more than 99 per cent of malaria cases recorded in Europe were imported from endemic regions. Between 1969 and early 2024, databases recorded 145 cases where patients were infected within Europe, with over two-thirds classified as airport malaria. The most affected countries were France (52 cases), Belgium (19), and Germany (9)—eight of those in Frankfurt and one in Munich.
The two newly infected individuals from Schwanheim are currently receiving hospital treatment. The city's health authority continues to investigate the cluster, and officials stress the importance of early diagnosis to prevent further fatalities.
