1. National Reference Laboratory for Vector Control, National Institute of Public Health, Šrobárova 49/48, 100 00 Praha 10, Czech Republic.
2. Department of Zoology and Fisheries, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Praha 6, Czech Republic.
3. Department of Biostatistics, National Institute of Public Health, Šrobárova 49/48, 100 00 Praha 10, Czech Republic.
4. Department of Microbiology, Nutrition and Dietetics, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Praha 6, Czech Republic.