About the Authors
Institute for Microbiology and Hygiene, Charité–University of Medicine, Campus Benjamin Franklin, Berlin, Germany
Department of Community Health, School of Medicine, Federal University of Ceará, Fortaleza, Brazil
Mandacaru Foundation, Fortaleza, Brazil
Bayer HealthCare AG, Animal Health Division, Leverkusen, Germany
Norbert Mencke is a senior scientist at Bayer Health Care, Monheim, Germany, a company which produces insecticides.
Conceived and designed the experiments: JH HF. Performed the experiments: SS JH LW. Analyzed the data: DP. Contributed reagents/materials/analysis tools: NM. Wrote the paper: DP. Contributed to the manuscript: JH. Contributed to the manuscript and analysis: AK. Revised the manuscript and participated in the analysis: HF.