Acknowledgment
This work was supported by the David and Lucille Packard Fellowship for
Science and Engineering (DIB), the Howard Hughes Medical Institute
(Early Career Scientist award to DIB), and by NIH NIAID grant
1R01AI123659-01A1. Field sampling in 2009 was made possible by
assistance from Todasporn Rodbumrung, Chris Harrison, Will Shim, Yuexin
Jiang, Will Stutz. Will Shim provided parasite information in Table S2.