Graph demonstrates influenza-like illness patients swabbed by year between 2007-2014 in the VicSPIN sentinel surveillance program. Bars show number swabbed and line shows percentage of influenza-like illness patients swabbed. Relatively low numbers swabbed in 2007 with 461 and or 42% and 403 or 47% in 2008. Spike in numbers swabbed in 2009 at 1071 (60%). Although numbers swabbed were lower than this after 2009, the percentages were largely maintained, rising to the maximum percentage of 75% in 2014.