1. Department of Infectious Diseases and Advanced Microbiology, School of Tropical Medicine, Kolkata, India;
2. Drs. Tribedi and Roy Diagnostic Laboratory, Kolkata, India;
3. Department of Tropical Medicine, School of Tropical Medicine, Kolkata, India;
4. Department of Medical Parasitology, Postgraduate Institute of Medical Education and Research, Chandigarh, India;
5. Department of Microbiology, School of Tropical Medicine, Kolkata, India;
6. School of Tropical Medicine, Kolkata, India