Tehran University of Medical Sciences Journal of Arthropod-Borne Diseases 2322-1984 19 2 2025 11 04 183 184 Mani Kumar Department of Medical Microbiology, Postgraduate Institute of Medical Education and Research, Chandigarh, India Nidhi Singla Department of Microbiology, Government Medical College and Hospital, Chandigarh, India Manharpreet Kaur Department of Medical Microbiology, Postgraduate Institute of Medical Education and Research, Chandigarh, India Sarabmeet lehl Department of Medicine, Government Medical College and Hospital, Chandigarh, India Jagdish Chander Department of Microbiology, Government Medical College and Hospital, Chandigarh, India 2024 12 03 2025 11 02 Vector-borne diseases impose a substantial burden on healthcare facilities, with an escalating number of cases involving co-infections with filarial diseases. The co-infection of dengue and filarial diseases presents a complex clinical scenario that requires careful consideration and management. We present a case of a 35-year-old male initially diagnosed with dengue who presented with subsequent identification of microfilariae in peripheral blood film. This unexpected finding underscores the importance of thorough investigation and consideration of co-infections, particularly in regions where both diseases are endemic. https://jad.tums.ac.ir/index.php/jad/article/view/1800 https://jad.tums.ac.ir/index.php/jad/article/download/1800/691