Preparation for pigeon sampling

In the context of a research project, we are investigating the prevalence of two avian pathogens in various Swiss cities. For our study, swab samples are taken from pigeons in urban pigeon lofts and then examined in the laboratory. Even if you might think at first glance that you are in an infectious high-risk area, this is merely the preparations for taking samples in the pigeon loft at "Tierpark Bern".
by Nina Wolfrum