Tainan County's has been the most successful of the DOH pilot programs. As of April 2006, it had distributed nearly 15,000 needles, and its infection rate had fallen from fourth highest in the nation in 2004 to ninth in 2005.
台南縣執行衛生署的減害計畫，在全國 4 個試辦縣市中的執行成果名列第一，到今年 4 月為止總共發出了將近 1 萬 5,000 支注射器，也讓台南縣同期的感染率由 2004 年全台第 4 名下降到隔年的第 9 名。