A traveller was diagnosed with Plasmodium falciparum malaria at the University Hospital in Geneva after visiting friends and relatives in Mumbai, India. He reported not having travelled outside Mumbai. Earlier in March 2025, he had visited Liberia, where he correctly took malaria chemoprophylaxis (Malarone®), making Liberia a less likely source of infection.
Media reports indicate that malaria cases in Mumbai doubled in June 2025 (884 cases) compared to June 2024 (443 cases), with a total of 3’490 cases reported so far this year.
These cases serve as a reminder that malaria remains endemic in Indian cities as well.
Prevention: Optimal mosquito protection 24/7, also in cities (also against other mosquito-borne diseases such as dengue, chikungunya, Zika and others). In case of fever, malaria should be always ruled out.