Recovery of dead or live Trichinella larvae. A. Fourty-one data points of two combined experiments using the SSM are shown: single to fourfold spikes and counts of dead larva (20 samples, RIVM) and triplicate spikes and counts of live ML (21 samples, BIOR). Identical data points from the same experiment appear as one single data point in the graph. B. Trichinella larvae were isolated using the EU-RM for live larvae (before freezing) and by the SSM for dead larvae (after freezing). Individual data points represent average values of duplicate counts by two researchers; error bars represent counts range. One identified outlier is omitted here. C. Parasite counts mentioned under A display a negative binomial distribution. D. Parasite counts before freezing (freeze no) and after freezing (freeze yes) overlap and median values before (57) and after (56) freezing were comparable. Top and bottom of the boxes represent 25th and 75th percentiles respectively.