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Contaminations of laboratory surfaces with Staphylococcus aureus are affected by the carrier status of laboratory staff

Aim:  As a biosafety laboratory, we take samples from surfaces in microbiological laboratories to survey the handling of micro‐organisms. Whereas contaminations with other micro‐organisms were rare, Staphylococcus aureus was found in the working environment of many laboratories. As 20–60% of the healthy population are carriers of S. aureus we wanted to asses the effect of carriers on our sampling results.