The Flu versus Anthrax by Alex Tabarrok October 18, 2004 at 7:30 am in Science Annual U.S. Deaths Due to the Flu: approx 36,000. Annual U.S. Deaths Due to Anthrax: ~1. Spending on R&D to fight Flu: $283 million. Spending on R&D to fight Anthrax and other biological agents: $5.6 billion.