Swine Program

PRRS charts

PRRS cumulative incidence

PRRS cumulative incidence

Line figure showing PRRS cumulative incidence This chart shows the incidence (number of new infection/number of farms at risk * 100) by month since 2009. Each season (July 1st to June 30th) is represented by a different color. The latest season’s incidence is shown in red.

PRRS aggregate prevalence of sow herd status

PRRS aggregate prevalence of sow herd status

Figure displaying PRRS aggregate prevalence This chart shows the prevalence of farms in a given PRRS classification status (number of farms in a given PRRS status/total number of farms * 100) since July 2009.

PRRS incidence by classification status

PRRS incidence by classification status

Line figure showing PRRS incidence by health status This chart shows the PRRS incidence by classification status (number of new infections in a given classification status/number of farms initially in that PRRS classification status) in the current season.

PRRS EWMA

PRRS EWMA

Figure showing PRRS Estimated Weighted moving average This chart shows PRRS incidence weighted by the incidence in the previous week. Also, it shows the epidemic threshold for the current season and the number of new PRRS infections reported each week.