One test reaction can yield up to eight results, including four serovar identifications and four quantification measurements. Traditional enrichment can allow certain serovars to overgrow others, potentially skewing results from the original sample, explained Krushinskie. How it worksA poultry rinse, ground meat or environmental sample is filtered and then concentrated by centrifugation to pellet the target Salmonella cells. Up to four target serovars can be analyzed in a single reaction. A linear regression algorithm then reveals the total Salmonella concentration and independent target serovars per sample.