About the Authors
Department of Biological Sciences, Eck Institute for Global Health, University of Notre Dame, Notre Dame, Indiana, United States of America
Department of Life Sciences, University of the West Indies, St. Augustine, Trinidad and Tobago, West Indies
The authors have declared that no competing interests exist.
Conceived and designed the experiments: RRH DDC DWS. Performed the experiments: RRH CLT DDC DWS. Analyzed the data: RRH. Wrote the paper: RRH DDC DWS.