We collect samples from the wastewater of Finnish pig and poultry abattoirs, as well as from animals on the slaughter line. The samples are cultured to detect methicillin-resistant Staphylococcus aureus (MRSA) and extended-spectrum beta-lactamase (ESBL/AmpC) producing Escherichia coli. We use both phenotypic and genotypic methods to characterize the bacteria. Bacteria isolated from wastewater and slaughter animals are compared using genomic epidemiology.
The aim of the study is to determine to what extent MRSA and ESBL/AmpC bacteria isolated from slaughterhouse wastewater correspond to those found in animals. The study also serves as a pilot for the development of wastewater-based surveillance of food-producing animals.
My PhD position is funded by the University of Helsinki Doctoral School.