Methods The report cards of infectious diseases in 1996, 1999, 2003 and 2005 were sampled and analyzed statistically, which were involved in four kinds of reporting modes of infectious disease respectively.

• 方法抽取四种不同传染病疫情报告方式中具有代表性的1996年、1999年、2003年、2005年的传染病报告卡进行统计分析。