我查了一下，美国每年大约1百万人感染这病，需要治疗。这药每个人的剂量价格是多少？

difficile infects approximately half a million Americans each year. Among those infected with C. difficile, about 29,000 patients had fatal outcomes within a month of the initial diagnosis, and 15,000 of these deaths could be directly attributed to C. difficile infection.