Some of the financial losses from a PRRS infection are more deaths, poor growth performance, increases of other diseases, and the use of more medications and vaccines. Outbreaks among the sow herd have been estimated to be around $250 per sow and as high as $302 per sow. The costs involved with persistent infections in the breeding herd or growing pigs are difficult to quantify, some authors believe it to be around $6.25 to $15.25 per pig. Following a PRRS outbreak the chances of other diseases infecting the herd can be increased significantly, which can cause huge losses to producers. Most producers spend more money on diagnostic testing and herd monitoring after their herd becomes infected. Budget analysis can provide a simple method for estimating the cost of the diseases on a farm and help justify the money spent developing control strategies.