1. New York City Department of Environmental Protection, Bureau of Water Supply, Water Quality and Innovation Directorate, Watershed Science and Planning, Valhalla, New York, USA
2. Parasitology Laboratory, New York State Department of Health, Albany, New York, USA
3. Department of Environmental Health Sciences, State University of New York at Albany School of Public Health, Rensselaer, New York, USA
4. Rabies Laboratory, New York State Department of Health, Albany, New York, USA