Swine Program

PRRS charts

PRRS cumulative incidence

PRRS cumulative incidence

Chart shoeing PRRS cumulative incidence from 2012 to 2017 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

Chart of the agregate prevalence of herd status 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

chart of prrs cumulative incidence by herd 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

Chart showing the PRRS EWMA over the years 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.