WIESŁAW KURZĄTKOWSKI1* and ANITA GĘBSKA-KUCZEROWSKA2 1Independent Laboratory of Streptomycetes and Fungi Imperfecti, National Institute of Public Health-National Institute of Hygiene, Warsaw, Poland 2Department of Health Promotion and Postgraduate Education, National Institute of Public Health-National Institute of Hygiene, Warsaw, Poland *Corresponding author: W. Kurząt...