Viral fevers like H1N1 and dengue are resulting in high hospitalization costs in India, with average treatment claims being between Rs. 50,000 to Rs. 3 lakh over 5 days. Hospital bills for patients requiring intensive care and ventilator support can exceed Rs. 10-14 lakh. Insurance claims for fever-related infections have risen 7% year-over-year in Mumbai. Experts warn that infectious disease burden in India may rise to the level of cardiac diseases due to increasing pollution, poor lifestyles and immunity. However, some note that hospital bills are often inflated due to unnecessary tests and procedures.