The collection in brief
The collection of human pathogens and antibiotic-resistant bacteria mainly contains isolates of Listeria monocytogenes from samples of dairy products analysed during the listeriosis epidemics that occurred in Switzerland in the 1980s. Escherichia coli isolates represent the second most abundant species and include crucial STEC isolates. Staphylococcus aureus is the third most abundant species and has mainly been isolated from dairies or cows suffering from mastitis. More recently, antibiotic-resistant bacteria such as extended-spectrum beta-lactamase-producing Enterobacteriaceae or carbapenem-resistant strains of Pseudomonas aeruginosa isolated from dairy, meat, or fresh produce have been included in the collection.
